Update invitation.yml

Author: Panquesito7

.github/workflows/invitation.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Invite on label
-        uses: vj-abigo/invite-on-label@v1.2
+        uses: vj-abigo/invite-on-label@main
         with:
           organization: LearnWithCommunity
           label: invite me to the organisation