build: Validate XML (#74)

.github/workflows/check.yml

@@ -13,7 +13,7 @@ jobs:
         env:
           SHELLCHECK_OPTS: -x --source-path=src -e SC1091 -e SC2001 -e SC2034 -e SC2064 -e SC2317 -e SC2153
       - name: Validate XML
-        uses: actions/verify-xml-action@v1
+        uses: action-pack/valid-xml@v1
         with:
          path: "assets"
          file-endings: ".xml"