ci(github-action): update planetscale/ghcommit-action ( v0.2.18 ➔ v0.2.19 )

| datasource  | package                     | from    | to      |
| ----------- | --------------------------- | ------- | ------- |
| github-tags | planetscale/ghcommit-action | v0.2.18 | v0.2.19 |

Author: renovate[bot]

.github/workflows/workflow_call-render-readme.yaml

@@ -47,7 +47,7 @@ jobs:
           python ./.ci/scripts/render-readme.py
 
       - name: Commit Changes
-        uses: planetscale/ghcommit-action@f24050e41f8694750427d111b52f4ef9ca81a32d # v0.2.18
+        uses: planetscale/ghcommit-action@343f41817a6a0f882f18bbc59fdd37f49452736f # v0.2.19
         with:
           commit_message: "chore: regenerate README.md [skip ci]"
           repo: ${{ github.repository }}