ci: refactor conversion workflow

Using github.event.pull_request and the paths-filter, we can simplify this

- only run action if config changed
- change workflow to only run job if no draft & open
- rename to synchronization since it's no conversion
- no manual triggering necessary

fixes GIScience#1685

Co-authored-by: Amandus <[email protected]>

.github/workflows/config-conversion-automation.yml

@@ -1,56 +1,29 @@
-name: Automatic conversion of application.yml to ors-config.yml
+name: Automatic synchronization of application.yml to ors-config.yml
 on:
   pull_request:
     branches:
       - main
       - releases/**
-    types: [ edited, opened, ready_for_review, review_requested, reopened, synchronize ]
-  workflow_dispatch:
-
+    types: [ opened, ready_for_review, reopened, synchronize ]
+    paths:
+      - 'ors-api/src/main/resources/application.yml'
 
 jobs:
-  detect_config_change:
-    name: Detect and commit config changes
+  sync_config:
+    name: Synchronize changes in application.yml to ors-config.yml
     runs-on: ubuntu-latest
     permissions:
       contents: write
+    if: (! github.event.pull_request.draft) && github.event.pull_request.state == 'open'
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           ref: ${{ github.head_ref }}
-      - name: Check PR state is ready_for_review
-        run: |
-          if [ "${{ github.event_name }}" == "pull_request" ]; then
-            pr_state=$(gh pr view --json state --jq .state)
-            pr_is_draft=$(gh pr view --json isDraft --jq .isDraft)
-            echo "pr_state=$pr_state" >> $GITHUB_ENV
-            echo "pr_is_draft=$pr_is_draft" >> $GITHUB_ENV
-          else
-            echo "This action is only intended to be run on pull requests."
-            exit 1
-          fi
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Convert application.yml to ors-config.yml
         run: |
           .github/utils/config_conversion.sh ors-api/src/main/resources/application.yml ors-config.yml
-      - name: Check with git if ors-api/ors-config.yml has changed
-        id: git-check
-        if: env.pr_state == 'OPEN' && env.pr_is_draft == 'false'
-        run: |
-          # Don't fail on exit code 1 (diff found)
-          set +e
-          git diff --exit-code --name-only ors-api/ors-config.yml
-          exit_value=$?
-          echo Found exit code $exit_value
-          # Write out the exit code using environment file
-          if [ $exit_value == 1 ]; then
-            echo "config_has_changed=true" >> $GITHUB_ENV
-          else
-            echo "Config hasn't changed. Skipping commit."
-          fi
       - uses: MichaelsJP/git-auto-commit-action@v5
-        if: env.pr_state == 'OPEN' && env.pr_is_draft == 'false' && env.config_has_changed == 'true'
         with:
           commit_message: 'chore(config): automatic conversion of application.yml to ors-config.yml'
+