Make it easier to run workflows locally with 'act'

.github/actions/init-integ-test/action.yml

@@ -11,6 +11,7 @@ runs:
 
     # Downloads a 'dist' directory artifact that was uploaded in an earlier 'build-dist' step
     - name: Download dist
+      if: ${{ !env.ACT }}
       uses: actions/download-artifact@v4
       with:
         name: dist

build

@@ -3,8 +3,21 @@
 cd sources
 npm install
 
-if [ "$1" == "all" ]; then
-    npm run all
-else
-    npm run build
-fi
+case "$1" in
+    all)
+        nprm run all
+        ;;
+    act)
+        # Build and copy outputs to the dist directory
+        npm run build
+        cd ..
+        cp -r sources/dist .
+        # Run act
+        $@
+        # Revert the changes to the dist directory
+        git co -- dist
+        ;;
+    *)
+        npm run build
+        ;;
+esac