ci: switch to macos-14 runner

.github/workflows/release_nightly.yml

@@ -73,13 +73,13 @@ jobs:
 
           # Mac does two Rust builds to make a universal binary
           - build_name: macos-x86_64
-            os: macos-latest
+            os: macos-14
             target: x86_64-apple-darwin
             MACOSX_DEPLOYMENT_TARGET: 10.7
             DESKTOP_FEATURES: sandbox,jpegxr
 
           - build_name: macos-aarch64
-            os: macos-latest
+            os: macos-14
             target: aarch64-apple-darwin
             MACOSX_DEPLOYMENT_TARGET: 11.0
             DESKTOP_FEATURES: sandbox,jpegxr
@@ -169,7 +169,7 @@ jobs:
   build-mac-universal-binary:
     name: Build macOS universal binary
     needs: [create-nightly-release, build, build-web]
-    runs-on: macos-latest
+    runs-on: macos-14
     env:
       PACKAGE_FILE: ${{ needs.create-nightly-release.outputs.package_prefix }}-macos-universal.tar.gz
     steps:

.github/workflows/test_rust.yml

@@ -39,7 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         rust_version: [stable]
-        os: [ubuntu-22.04, windows-latest, macos-latest]
+        os: [ubuntu-22.04, windows-latest, macos-14]
         include:
           - rust_version: nightly
             os: ubuntu-22.04
@@ -124,7 +124,7 @@ jobs:
     strategy:
       matrix:
         rust_version: [stable]
-        os: [ubuntu-22.04, windows-latest, macos-latest]
+        os: [ubuntu-22.04, windows-latest, macos-14]
         include:
           - rust_version: nightly
             os: ubuntu-22.04