devops: fix workflow publishing (#22673)

The release workflow is failing with the [following
error](https://github.com/microsoft/playwright/actions/runs/4814866583):

<img width="949" alt="image"
src="https://user-images.githubusercontent.com/746130/234735651-204acaea-324b-410e-b030-4c56aabdd653.png">

This was regressed in
https://github.com/microsoft/playwright/pull/22232/

.github/workflows/publish_release_npm.yml

@@ -23,10 +23,10 @@ jobs:
     - run: npm run build
     - run: npx playwright install-deps
     - run: utils/publish_all_packages.sh --release-candidate
-      if: github.event.release.prerelease
+      if: "github.event.release.prerelease"
       env:
         NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
     - run: utils/publish_all_packages.sh --release
-      if: !github.event.release.prerelease
+      if: "!github.event.release.prerelease"
       env:
         NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}