Add macOS artifacts to release workflow.

.github/workflows/macos.yml

@@ -6,6 +6,7 @@ on:
   pull_request:
     branches: [ master ]
   workflow_dispatch:
+  workflow_call:
 
 env:
   CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm-cache

.github/workflows/release.yml

@@ -8,24 +8,34 @@ jobs:
   release-build-windows:
     uses: ./.github/workflows/windows.yml
 
+  release-build-macos:
+    uses: ./.github/workflows/macos.yml
+
   release-build-manual:
     uses: ./.github/workflows/latex.yml
 
   attach-to-release:
-    needs: [release-build-windows, release-build-manual]
+    needs: [release-build-windows, release-build-macos, release-build-manual]
     runs-on: ubuntu-latest
     permissions:
       contents: write
     steps:
     - uses: actions/download-artifact@v4
-    - name: Create versioned zip
+    - name: Create versioned Windows zip
       run: |
         VERSION="${{ github.event.release.tag_name }}"
         VERSION_NO_V="${VERSION#v}"
         cd windows
         zip -r ../windows-$VERSION_NO_V.zip .
+    - name: Create versioned macOS zip
+      run: |
+        VERSION="${{ github.event.release.tag_name }}"
+        VERSION_NO_V="${VERSION#v}"
+        cd macos
+        zip -r ../macos-$VERSION_NO_V.zip .
     - uses: softprops/action-gh-release@v2
       with:
         files: |
           windows-*.zip
+          macos-*.zip
           manual/tracy.pdf