Pin multiline release setup-go reference

Pin the omitted actions/setup-go v4 reference to its resolved commit without changing the Go toolchain or release behavior.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: mrecachinas

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - name: Setup
         uses:
-          actions/setup-go@v4
+          actions/setup-go@7b8cf10d4e4a01d4992d18a89f4d7dc5a3e6d6f4 # v4
         with:
           go-version: 1.21