fix(ci): login to ecr to fetch contracts image (#3538)

need to perform `ecr_login` before running script on docker image that's
deployed on ECR

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- [ ] If the pull request requires a cryptography review (e.g.
cryptographic algorithm implementations) I have added the 'crypto' tag.
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unexpected formatting changes, testing logs, or commented-out code.
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l1-contracts/scripts/ci_deploy_contracts.sh

@@ -14,6 +14,9 @@ if check_rebuild "cache-$CONTENT_HASH-$DEPLOY_TAG-deployed" $REPOSITORY; then
   exit 0
 fi
 
+# Login to pull our ecr images with docker.
+ecr_login
+
 mkdir -p serve
 # Contract addresses will be mounted in the serve directory
 docker run \