chore: fix update chart yaml (#3185)

.github/workflows/platform-docker-publish-image.yml

@@ -18,6 +18,13 @@ jobs:
       - name: Cloning repo
         uses: actions/checkout@v3
 
+      - name: Checkout Target Charts Repository to update yaml
+        uses: actions/checkout@v3
+        with:
+          repository: flagsmith/flagsmith-charts
+          path: chart
+          token: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Docker metadata
         id: meta
         uses: docker/metadata-action@v4
@@ -57,6 +64,18 @@ jobs:
           TAG=${{github.ref_name}}
           echo "version_trim=${TAG#v}" >> $GITHUB_ENV
 
+      - name: Run YAML to Github Output Action
+        id: yaml-output
+        uses: christian-ci/action-yaml-github-output@v2
+        with:
+          file_path: './chart/charts/flagsmith/Chart.yaml'
+
+      - uses: us-ignite/action-bump-semver@main
+        id: bump-semver
+        with:
+          current_version: ${{ steps.yaml-output.outputs.version }}
+          level: minor
+
       - name: Update flagsmith-charts values.yaml with latest docker version
         uses: fjogeleit/yaml-update-action@main
         with:
@@ -71,5 +90,8 @@ jobs:
           message: 'Flagsmith docker image version bump'
           description: 'Automated PR generated by a release event in https://github.com/Flagsmith/flagsmith'
           valueFile: 'charts/flagsmith/Chart.yaml'
-          value: ${{ env.version_trim }}
-          propertyPath: 'appVersion'
+          changes: |
+            {
+              "appVersion": "${{ env.version_trim }}",
+              "version": "${{ steps.bump-semver.outputs.new_version }}"
+            }