Use main branch for CI workflow

Author: WyriHaximus

.github/workflows/ci.yml

@@ -14,6 +14,6 @@ permissions:
 jobs:
   ci:
     name: Continuous Integration
-    uses: WyriHaximus/github-workflows/.github/workflows/package.yaml@package
+    uses: WyriHaximus/github-workflows/.github/workflows/package.yaml@main
     with:
       jsonPattern: "composer.json"