Update main.yml

Author: galargh

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Check for new go-ipfs version
         id: check
         uses: ./.github/actions/check-for-go-ipfs-release