ci: updated mac runner jobs

* Related https://github.com/MatrixAI/js-quic/issues/25

Author: tegefaulkes

.gitlab-ci.yml

@@ -207,8 +207,8 @@ build:macos:
   stage: build
   needs: []
   tags:
-    - shared-macos-amd64
-  image: macos-11-xcode-12
+    - saas-macos-medium-m1
+  image: macos-12-xcode-14
   variables:
     # Produce universal binary
     RUST_BACKTRACE: "1"