Extracted Canary workflow to template

refs 4aee97472e

- the referenced commit copied the workflow file to our shared templates
  repository
- this commit switches to using that template
- this should help reduce duplication when we're doing v5

.github/workflows/canary.yml

@@ -4,42 +4,4 @@ env:
   FORCE_COLOR: 1
 jobs:
   canary:
-    runs-on: ubuntu-18.04
+    uses: tryghost/actions/.github/workflows/canary.yml@main
-    name: Canary
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-          submodules: true
-      - uses: actions/setup-node@v3
-        env:
-          FORCE_COLOR: 0
-        with:
-          node-version: '14.17.0'
-          cache: yarn
-
-      - name: Set up Git
-        run: |
-          git config --global pull.rebase true
-          git config --global user.name "Ghost CI"
-          git config --global user.email "ghost@example.com"
-
-      - run: yarn
-      - run: yarn main
-
-      - run: echo "ghost_hash=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
-      - run: echo "ghost_admin_hash=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
-        working-directory: core/client
-      - run: if [ -n "$(git status --porcelain)" ]; then git add core/client content/themes/casper && git commit -m "Updated Ghost-Admin and Casper"; fi
-
-      - run: npm version preminor --preid="pre.$ghost_hash.$ghost_admin_hash"
-      - run: npm version preminor --preid="pre.$ghost_hash.$ghost_admin_hash"
-        working-directory: core/client
-
-      - run: grunt release --skip-update
-
-      - uses: actions/upload-artifact@v3
-        with:
-          name: ghost-canary
-          path: .dist/release/*
-          retention-days: 7