Fix building release binary for darwin_amd64

Running the release job on macos-latest is using darwin_arm64, so cross compiling the
binary to darwin_amd64.

To make this work, either the build needs to run under Rosetta, or the build needs a
C cross compiler targetting darwin_amd64 (otherwise CGO is disabled).

Using the macos-13 runner fixes this problem by avoiding to cross compile.

Author: avdv

.github/workflows/release.yaml

@@ -35,7 +35,7 @@ jobs:
 
           - name: darwin_amd64
             artifact: ibazel_darwin_amd64
-            os: macos-latest
+            os: macos-13
             build_flags: --platforms=@io_bazel_rules_go//go/toolchain:darwin_amd64_cgo
             # See comment below for more information on this flag.
             cpu_flag: --cpu=darwin_amd64