ci: split docker hub description to separate workflow

.github/workflows/dockerhub-description.yml

@@ -0,0 +1,27 @@
+name: Update Docker Hub Description
+
+env:
+  IMAGE_NAME: ${{ github.repository }}
+  DOCKERHUB_USERNAME: c4illin
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - README.md
+      - .github/workflows/dockerhub-description.yml
+jobs:
+  dockerHubDescription:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Docker Hub Description
+      uses: peter-evans/dockerhub-description@v4
+      with:
+        username: ${{ env.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+        repository: ${{ env.IMAGE_NAME }}
+        short-description: ${{ github.event.repository.description }}
+        enable-url-completion: true