Remove github issue template for git beta and improve related CI (#26707)

Remove the git beta issue template.
Improve ci.yml `job_spec` so that changes like this will not require CI in the future.
Improve ci.yml `job_spec` ensuring `output.run_license` exported for Cargo.lock.

Release Notes:

- N/A

---------

Co-authored-by: Peter Tripp <peter@zed.dev>

.github/workflows/ci.yml

@@ -28,6 +28,7 @@ jobs:
     if: github.repository_owner == 'zed-industries'
     outputs:
       run_tests: ${{ steps.filter.outputs.run_tests }}
+      run_license: ${{ steps.filter.outputs.run_license }}
     runs-on:
       - ubuntu-latest
     steps:
@@ -47,7 +48,12 @@ jobs:
             git fetch origin "$GITHUB_BASE_REF" --depth=350
             COMPARE_REV=$(git merge-base "origin/${GITHUB_BASE_REF}" HEAD)
           fi
-          if [[ $(git diff --name-only $COMPARE_REV ${{ github.sha }} | grep -v "^docs/") ]]; then
+          # Specify anything which should skip full CI in this regex:
+          # - docs/
+          # - .github/ISSUE_TEMPLATE/
+          # - .github/workflows/  (except .github/workflows/ci.yml)
+          SKIP_REGEX='^(docs/|\.github/(ISSUE_TEMPLATE|workflows/(?!ci)))'
+          if [[ $(git diff --name-only $COMPARE_REV ${{ github.sha }} | grep -vP "$SKIP_REGEX") ]]; then
             echo "run_tests=true" >> $GITHUB_OUTPUT
           else
             echo "run_tests=false" >> $GITHUB_OUTPUT