chore: add clean unused github container image action job

.github/workflows/clean_unused_image.yml

@@ -0,0 +1,44 @@
+name: Clean Unused Docker Image
+
+on:
+  schedule:
+    - cron: "0 0 * * *"  # every day
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Dry run'
+        required: true
+        type: boolean
+        default: false
+      cut_off:
+        description: 'Cut off date'
+        required: true
+        type: string
+        default: '90days'
+jobs:
+  clean:
+    runs-on: ubuntu-latest
+    name: Delete old unused images
+    steps:
+      - name: clean tryzealot/zealot images
+        uses: snok/container-retention-policy@v3.0.0
+        env:
+          CUT_OFF: ${{ inputs.cut_off }}
+        with:
+          account: tryzealot
+          token: ${{ secrets.SECRET_API_TOKEN }}
+          image-names: "zealot"
+          tag-selection: untagged
+          cut-off: "${CUT_OFF:-90days}"
+          dry-run: ${{ inputs.dry_run }}
+      - name: clean tryzealot/codespace images
+        uses: snok/container-retention-policy@v3.0.0
+        env:
+          CUT_OFF: ${{ inputs.cut_off }}
+        with:
+          account: tryzealot
+          token: ${{ secrets.SECRET_API_TOKEN }}
+          image-names: "codespace"
+          tag-selection: untagged
+          cut-off: "${CUT_OFF:-90days}"
+          dry-run: ${{ inputs.dry_run }}

.github/workflows/issue_translator.yml

@@ -1,4 +1,4 @@
-name: 'issue-translator'
+name: Issue Translator
 on:
   issue_comment:
     types: [created]