ci: fix new job config (#7071)

* ci: fix new job config

Whoops. If your workflow is invalid, it doesn't even report as failed. And I hadn't marked
the new jobs as required yet.

* ci(lint): add missing build step to lint job

Author: serhalp

.github/workflows/format.yml

@@ -10,6 +10,7 @@ jobs:
   format:
     name: Format
     if: "${{ !startsWith(github.head_ref, 'release-') }}"
+    runs-on: ubuntu-latest
     steps:
       - name: Git checkout
         uses: actions/checkout@v4

.github/workflows/lint.yml

@@ -10,6 +10,7 @@ jobs:
   lint:
     name: Lint
     if: "${{ !startsWith(github.head_ref, 'release-') }}"
+    runs-on: ubuntu-latest
     steps:
       - name: Git checkout
         uses: actions/checkout@v4
@@ -20,5 +21,8 @@ jobs:
           cache: npm
       - name: Install core dependencies
         run: npm ci --no-audit
+      # Almost not needed, but a single file in `scripts/` imports built code
+      - name: Build package
+        run: npm run build
       - name: Run lint
         run: npm run lint