first attempt with auto version bump

Author: tomer-w

.github/workflows/update-version.yml

@@ -0,0 +1,37 @@
+name: Update Version on Release
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  update-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: main
+          token: ${{ secrets.GITHUB_TOKEN }}
+          
+      - name: Update manifest version
+        run: |
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "Updating version to $VERSION"
+          jq --arg v "$VERSION" '.version = $v' custom_components/victron_mqtt/manifest.json > tmp.json
+          mv tmp.json custom_components/victron_mqtt/manifest.json
+          
+      - name: Commit and push
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add custom_components/victron_mqtt/manifest.json
+          git commit -m "Bump version to ${GITHUB_REF_NAME#v}" || exit 0
+          git push
+          
+      - name: Update release tag to include version bump
+        run: |
+          git tag -f $GITHUB_REF_NAME
+          git push -f origin $GITHUB_REF_NAME