Fix build script for 5.4.x

Author: smulvih2

.github/workflows/build.yml

@@ -31,7 +31,7 @@ jobs:
 
     - uses: statcan/actions/composer@master
       with:
-        args: require drupalwxt/wxt:5.3.x-dev#${{ github.sha }} --working-dir=./site-wxt
+        args: require drupalwxt/wxt:5.4.x-dev#${{ github.sha }} --working-dir=./site-wxt
 
     - name: Build out the Drupal infrastructure
       run: |