ci: add yamllint (#6682)

adds yaml linting to CI and applies rules to existing yaml files.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6682-ci-add-yamllint-2aa6d73d365081b4b67ae9d9cc86760f)
by [Unito](https://www.unito.io)

.github/workflows/i18n-update-nodes.yaml

@@ -13,42 +13,42 @@ jobs:
   update-locales:
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v5
-    # Setup playwright environment
-    - name: Setup ComfyUI Server (and start)
-      uses: ./.github/actions/setup-comfyui-server
-      with:
-        launch_server: true
-    - name: Setup frontend
-      uses: ./.github/actions/setup-frontend
-      with:
-        include_build_step: true
-    - name: Setup Playwright
-      uses: ./.github/actions/setup-playwright
+      - name: Checkout repository
+        uses: actions/checkout@v5
+      # Setup playwright environment
+      - name: Setup ComfyUI Server (and start)
+        uses: ./.github/actions/setup-comfyui-server
+        with:
+          launch_server: true
+      - name: Setup frontend
+        uses: ./.github/actions/setup-frontend
+        with:
+          include_build_step: true
+      - name: Setup Playwright
+        uses: ./.github/actions/setup-playwright
 
-    - name: Start dev server
-      # Run electron dev server as it is a superset of the web dev server
-      # We do want electron specific UIs to be translated.
-      run: pnpm dev:electron &
-    - name: Update en.json
-      run: pnpm collect-i18n -- scripts/collect-i18n-node-defs.ts
-      env:
-        PLAYWRIGHT_TEST_URL: http://localhost:5173
-    - name: Update translations
-      run: pnpm locale
-      env:
-        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-    - name: Create Pull Request
-      uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e
-      with:
-        token: ${{ secrets.PR_GH_TOKEN }}
-        commit-message: "Update locales for node definitions"
-        title: "Update locales for node definitions"
-        body: |
-          Automated PR to update locales for node definitions
+      - name: Start dev server
+        # Run electron dev server as it is a superset of the web dev server
+        # We do want electron specific UIs to be translated.
+        run: pnpm dev:electron &
+      - name: Update en.json
+        run: pnpm collect-i18n -- scripts/collect-i18n-node-defs.ts
+        env:
+          PLAYWRIGHT_TEST_URL: http://localhost:5173
+      - name: Update translations
+        run: pnpm locale
+        env:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e
+        with:
+          token: ${{ secrets.PR_GH_TOKEN }}
+          commit-message: "Update locales for node definitions"
+          title: "Update locales for node definitions"
+          body: |
+            Automated PR to update locales for node definitions
 
-          This PR was created automatically by the frontend update workflow.
-        branch: update-locales-node-defs-${{ github.event.inputs.trigger_type }}-${{ github.run_id }}
-        base: main
-        labels: dependencies
+            This PR was created automatically by the frontend update workflow.
+          branch: update-locales-node-defs-${{ github.event.inputs.trigger_type }}-${{ github.run_id }}
+          base: main
+          labels: dependencies