ci: Validate before building the docs in the deploy job

The docs build is the slowest step in the job and nothing about
publishing depends on it, so running lint, format:check and the tests
first means a failing check stops the job before that minute is spent.
Build and the publish steps that follow are unchanged.

Author: RobinBol

.github/workflows/deploy.yml

@@ -74,20 +74,22 @@ jobs:
       - name: Upgrade npm for trusted publishing
         run: npm install -g npm@^11.5.1
 
-      # Run `npm ci && npm run build` to re-create your local environment (make sure to commit your - package-lock.json!).
-      - name: Build
-        run: |
-          npm ci
-          npm run build
+      # Run `npm ci` to re-create your local environment (make sure to commit your - package-lock.json!).
+      - name: Install
+        run: npm ci
 
       # Nothing below this point runs if the package does not lint, format or test
       # cleanly, so a push to testing cannot publish a beta that was never checked.
+      # Ahead of the docs build, which is the slowest step here.
       - name: Validate
         run: |
           npm run lint
           npm run format:check
           npm test
 
+      - name: Build
+        run: npm run build
+
       - name: Version bump patch
         if: github.event.inputs.versionBumpType == 'patch' || contains(github.event.head_commit.message, '#patch') && !contains(github.event.head_commit.message, '#minor') && !contains(github.event.head_commit.message, '#major')
         run: |