Merge pull request #2940 from OffchainLabs/fix-pin-check

Update the pin check to expect the v2-main branch of nitro-contracts

Author: tsahee

.github/workflows/submodule-pin-check.yml

@@ -25,7 +25,7 @@ jobs:
         run: |
           status_state="pending"
           declare -Ar exceptions=(
-            [contracts]=origin/pre-bold
+            [contracts]=origin/v2-main
             [nitro-testnode]=origin/master
 
             #TODO Rachel to check these are the intended branches.