fix: reference the main workflow version (#6)

... doesn't work without a version number: 
```
Invalid workflow file: .github/workflows/this_welcome_message.yml#L13
invalid value workflow reference: no version specified
```

.github/workflows/default_release_callable.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Setup release
         run: |
-          # using same ref as in calling workflow 
+          # using same ref as in calling workflow
           git clone https://github.com/Hapag-Lloyd/Workflow-Templates.git .release_clone
           git checkout ${{ github.action_ref }}
 

.github/workflows/default_release_dry_run_callable.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Setup release
         run: |
-          # using same ref as in calling workflow 
+          # using same ref as in calling workflow
           git clone https://github.com/Hapag-Lloyd/Workflow-Templates.git .release_clone
           git checkout ${{ github.action_ref }}
 

.github/workflows/maven_release_callable.yml

@@ -35,7 +35,7 @@ jobs:
 
       - name: Setup release
         run: |
-          # using same ref as in calling workflow 
+          # using same ref as in calling workflow
           git clone https://github.com/Hapag-Lloyd/Workflow-Templates.git .release_clone
           git checkout ${{ github.action_ref }}
 

.github/workflows/maven_release_dry_run_callable.yml

@@ -35,7 +35,7 @@ jobs:
 
       - name: Setup release
         run: |
-          # using same ref as in calling workflow 
+          # using same ref as in calling workflow
           git clone https://github.com/Hapag-Lloyd/Workflow-Templates.git .release_clone
           git checkout ${{ github.action_ref }}
 

.github/workflows/this_linter.yml

@@ -7,6 +7,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_linter_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_linter_callable.yml@main
     secrets: inherit

.github/workflows/this_pull_request.yml

@@ -13,6 +13,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_pull_request_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_pull_request_callable.yml@main
     secrets: inherit

.github/workflows/this_release.yml

@@ -9,6 +9,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_release_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_release_callable.yml@main
     secrets: inherit

.github/workflows/this_release_dry_run.yml

@@ -9,6 +9,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_release_dry_run_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_release_dry_run_callable.yml@main
     secrets: inherit

.github/workflows/this_renovate_auto_approve.yml

@@ -6,6 +6,5 @@ on: pull_request_target
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_renovate_auto_approve_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_renovate_auto_approve_callable.yml@main
     secrets: inherit

.github/workflows/this_slash_ops_command_help.yml

@@ -9,6 +9,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_slash_ops_command_help_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_slash_ops_command_help_callable.yml@main
     secrets: inherit

.github/workflows/this_slash_ops_comment_dispatch.yml

@@ -9,6 +9,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_slash_ops_comment_dispatch_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_slash_ops_comment_dispatch_callable.yml@main
     secrets: inherit

.github/workflows/this_spelling.yml

@@ -7,6 +7,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_spelling_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_spelling_callable.yml@main
     secrets: inherit

.github/workflows/this_stale.yml

@@ -8,6 +8,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_stale_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_stale_callable.yml@main
     secrets: inherit

.github/workflows/this_welcome_message.yml

@@ -9,6 +9,5 @@ on:
 
 jobs:
   default:
-    # using stable to be able to quickly switch to a working version in case the current stable is broken
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_welcome_message_callable.yml
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/default_welcome_message_callable.yml@main
     secrets: inherit

setup-workflows.sh

@@ -78,10 +78,13 @@ do
   # remove everything else as we will reference the file in this repository
   sed -i '/jobs:/,$d' "$file"
 
+  # add a reference to this repository which holds the workflow
+  commit_sha=$(git rev-parse HEAD)
+
   cat >> "$file" <<-EOF
 jobs:
   default:
-    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/$base_name
+    uses: Hapag-Lloyd/Workflow-Templates/.github/workflows/$base_name@$commit_sha
     secrets: inherit
 EOF