Tools: Update actions to use shared action, add commit hash to theme …

…version.

.github/workflows/build.yml

@@ -11,19 +11,10 @@ jobs:
             - name: Checkout repository
               uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # v2.4.0
 
-            - name: Install NodeJS
-              uses: actions/setup-node@5b52f097d36d4b0b2f94ed6de710023fbb8b2236 # v3.1.0
+            - name: Setup
+              uses: WordPress/wporg-repo-tools/.github/actions/setup@trunk
               with:
-                  node-version-file: '.nvmrc'
-                  cache: 'yarn'
-
-            - name: Install all dependencies
-              run: |
-                  composer install
-                  yarn
-
-            - name: Build
-              run: yarn workspaces run build
+                token: ${{ secrets.GITHUB_TOKEN }}
 
             - name: Trim the repo down to just the theme
               run: |
@@ -42,6 +33,12 @@ jobs:
               run: |
                   git add * --force
 
+            - name: Append build number to version
+              run: |
+                current_version=$(grep -oP 'Version: \K[0-9]+\.[0-9]+\.[0-9]+' style.css)
+                new_version="${current_version}-${GITHUB_SHA::7}"
+                sed -i "s/Version: $current_version/Version: $new_version/" style.css
+
             - name: Commit and push
               uses: actions-js/push@a52398fac807b0c1e5f1492c969b477c8560a0ba # 1.3
               with: