ci: Merge bazel build and bazel test

On Windows, `bazel test` uses a different `PATH` value than
`bazel build`, which results in duplicated build steps. Since
`bazel test //...` also builds all targets, the additional `build` step
does not provide additional assurances.

This may also resolve `failed to delete output files` errors which occur
during the test step, likely because the build step leaks open files
somewhere.

.github/workflows/run-all-tests.yml

@@ -79,11 +79,8 @@ jobs:
         run: .github/scripts/echoBuildBuddyConfig.sh ${{ secrets.BUILDBUDDY_API_KEY }} >> $GITHUB_ENV
         shell: bash
 
-      - name: Build
-        run: bazelisk build ${{env.BUILD_BUDDY_CONFIG}} --java_runtime_version=local_jdk_${{ matrix.jdk }} --disk_cache=${{ matrix.cache }} ${{ matrix.bazel_args }} --build_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" //...
-
-      - name: Test
-        run: bazelisk test ${{env.BUILD_BUDDY_CONFIG}} --java_runtime_version=local_jdk_${{ matrix.jdk }} --disk_cache=${{ matrix.cache }} ${{ matrix.bazel_args }} --test_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" //...
+      - name: Build & Test
+        run: bazelisk test ${{env.BUILD_BUDDY_CONFIG}} --java_runtime_version=local_jdk_${{ matrix.jdk }} --disk_cache=${{ matrix.cache }} ${{ matrix.bazel_args }} --build_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" --test_tag_filters="-no-${{ matrix.arch }}-jdk${{ matrix.jdk }},-no-jdk${{ matrix.jdk }}" //...
 
       - name: Copy Bazel log
         if: always()