simulate sync-search in PRs (#22940)

* simulate sync-search in PRs

* Update .github/workflows/sync-search-pr.yml

Co-authored-by: Kevin Heis <heiskr@users.noreply.github.com>

* more consistent naming

Co-authored-by: Octomerger Bot <63058869+Octomerger@users.noreply.github.com>
Co-authored-by: Kevin Heis <heiskr@users.noreply.github.com>

.github/workflows/sync-search-pr.yml

@@ -0,0 +1,40 @@
+name: Sync search - PR
+
+# **What it does**: Tries running the sync-search when relevant files change.
+# **Why we have it**: To test that the script works and the popular pages json is valid.
+# **Who does it impact**: Docs engineering.
+
+on:
+  pull_request:
+    paths:
+      - script/search/parse-page-sections-into-records.js
+      - script/search/popular-pages.js
+      - lib/search/popular-pages.json
+      # Ultimately, for debugging this workflow itself
+      - .github/workflows/sync-search-pr.yml
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+
+      - name: Setup node
+        uses: actions/setup-node@04c56d2f954f1e4c69436aa54cfef261a018f458
+        with:
+          node-version: 16.13.x
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Run sync-search
+        env:
+          # Set filtered to only these so it doesn't run for too long.
+          LANGUAGE: en
+          VERSION: free-pro-team@latest
+        run: npm run sync-search