Install target for macOS architecture

.github/workflows/publish_release.yaml

@@ -35,14 +35,21 @@ jobs:
         run: |
           cargo install cross
 
-      # Linux targets will cross compile on Docker images used by cross
+      # Linux targets will cross compile on Docker images used by Cross.
       - name: "Login to Docker Hub"
         if: matrix.runner == 'ubuntu-22.04'
         uses: docker/login-action@v3
         with:
           username: ${{secrets.PUBLISH_DOCKERHUB_USERNAME}}
           password: ${{secrets.PUBLISH_DOCKERHUB_TOKEN}}
 
+      # macOS targets do not build using a Cross image, so they may need to
+      # download the target for their architecture.
+      - name: "Install macOS architecture target"
+        if: matrix.runner == 'macos-14'
+        run: |
+          rustup target add "${{matrix.target}}"
+
       - name: "Build artifact"
         run: |
           script/build_artifact "${{matrix.target}}"