Upgrade `actions/setup-go` to v3

Signed-off-by: Laura Brehm <[email protected]>

.github/workflows/merge.yml

@@ -32,8 +32,7 @@ jobs:
           git config --global --add safe.directory C:/actions-runner/_work/compose/compose
       - uses: actions/checkout@v3
 
-      # TODO(milas): revert to @v3 after next actions/setup-go minor release
-      - uses: actions/setup-go@f27981397569ab1d623dab1f29d3db81b75b5258
+      - uses: actions/setup-go@v3
         with:
           go-version-file: go.mod
           cache: true