config: add docker image workflow

.github/workflows/code-quality.yml

@@ -1,4 +1,4 @@
-name: CI
+name: Code quality analysis
 
 on:
   pull_request:

.github/workflows/docker-image.yml

@@ -0,0 +1,29 @@
+name: Docker image
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch: {}
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    name: Deploy docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Discord notification
+        env:
+          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
+        uses: Ilshidur/action-discord@master
+        with:
+          args: 'Deployment of an image has been triggered'
+      - uses: actions/checkout@v4
+      - name: Bump version and push tag
+        uses: anothrNick/github-tag-action@1.64.0 # Don't use @master or @v1 unless you're happy to test the latest version
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          WITH_V: false
+          DRY_RUN: true