tweak golangci-lint version

Author: masha256

.github/workflows/go-unit-test.yaml

@@ -17,7 +17,7 @@ jobs:
         uses: smartcontractkit/.github/actions/ci-lint-go@6ff93d190d3499c4889001c181f503c45420497d # ci-lint-go@4.2.0
         with:
           go-version-file: go.mod
-          golangci-lint-version: v2.12.2
+          golangci-lint-version: v2.9.0
           use-go-cache: true
           only-new-issues: false
           use-gati: false