Update macOS runners used to build binaries (#5404)

* Update macOS runners used to build binaries

macOS runners prior to macOS 14 no longer appear to be available in the
GitHub Actions public runner pool. See:

https://github.com/actions/runner-images

macOS 14 images are scheduled for deprecation on 6 July 2026. macOS 26
runners are currently in beta. macOS 15 runners are currently supported
for both arm64 (macos-15, macos-latest) and amd64 (macos-15-intel).

This change updates the runners used to build Fabric binaries to
macos-latest (for amd64) and macos-15-intel (for amd64).

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

* Use macos-15 instead of macos-latest

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

---------

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

Author: bestbeforetoday

.github/workflows/release.yml

@@ -30,10 +30,10 @@ jobs:
           - image: ubuntu-24.04
             target: linux
             arch: arm64
-          - image: macos-11
+          - image: macos-15-intel
             target: darwin
             arch: amd64
-          - image: macos-11
+          - image: macos-15
             target: darwin
             arch: arm64
           - image: fabric-windows-latest