Looser pin to v2 for shellcheck

Author: qdm12

.github/workflows/go.yml

@@ -73,7 +73,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: ludeeus/action-shellcheck@2.0.0
+      - uses: ludeeus/action-shellcheck@v2
         with:
           scandir: "./libevm"