chore: delete update metadata action (#6969)

.github/workflows/update_metadata.yml

@@ -1,46 +0,0 @@
-# This workflow updates the check_metadata.sh script, which compares the current
-# size of build artifacts against their size in the previous version of Blockly.
-
-name: Update Metadata
-
-on: [workflow_dispatch]
-
-permissions:
-  contents: read
-
-jobs:
-  update-metadata:
-    permissions:
-      contents: write  # for peter-evans/create-pull-request to create branch
-      pull-requests: write  # for peter-evans/create-pull-request to create a PR
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Check Out Blockly
-      uses: actions/checkout@v3
-      with:
-        ref: 'develop'
-
-    - name: Use Node.js 16.x
-      uses: actions/setup-node@v3
-      with:
-        node-version: 16.x
-
-    - name: Build Blockly
-      run: npm run build:compressed
-
-    - name: Build Blockly blocks
-      run: npm run build:blocks
-
-    - name: Update Metadata
-      run: source ./tests/scripts/update_metadata.sh
-
-    - name: Create Pull Request
-      uses: peter-evans/create-pull-request@38e0b6e68b4c852a5500a94740f0e535e0d7ba54
-      with:
-        commit-message: Update build artifact sizes in check_metadata.sh
-        delete-branch: true
-        title: Update build artifact sizes in check_metadata.sh
-
-    - name: View Pull Request
-      run: echo "View Pull Request - ${{ steps.cpr.outputs.pull-request-url }}"