fix(ci): fix many tests by setting a default version

.github/workflows/tests.yml

@@ -4,6 +4,13 @@ on:
   - push
   - workflow_call
 
+# Since we don't checkout the full history, set a default version so
+# certain tests (pep440, update_schema) will still function.  NOTE:
+# This **must** match the version of the JSON schema file in
+# g2p/mappings/.schema!!!
+env:
+  SETUPTOOLS_SCM_PRETEND_VERSION: 2.0
+
 jobs:
   test-all-on-linux:
     # This is our main test job, exercising everything and uploading to coverage

pyproject.toml

@@ -86,9 +86,6 @@ source = "vcs"
 
 [tool.hatch.build.hooks.vcs]
 version-file = "g2p/_version.py"
-# NOTE: This *must* match the version of the JSON schema in
-# g2p/mappings/.schema for test_cli.py to succeed.
-raw_options = { fallback_version = "2.0" }
 template = """
 # file generated by setuptools_scm
 # don't change, don't track in version control