chore(deps): update actions/setup-go action to v7

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
GitOrigin-RevId: e317240a7f9797b8b7cca86fe5805b6c8d680d32

Author: renovate[bot]

.github/actions/build-packages/action.yml

@@ -5,7 +5,7 @@ runs:
   using: "composite"
   steps:
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
       with:
         go-version-file: go.work
         # Caching is handled explicitly below. setup-go keys its cache purely

.github/actions/go-setup-cache/action.yml

@@ -18,7 +18,7 @@ runs:
   using: "composite"
   steps:
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
       with:
         go-version-file: go.work
         cache-dependency-path: |

.github/workflows/pr-tests-arm64.yml

@@ -30,7 +30,7 @@ jobs:
       # which can fill the runner disk (and the arm64 objects never get
       # saved). Keep a dedicated arm64-keyed cache instead.
       - name: Setup Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
         with:
           go-version-file: go.work
           cache: false