CI: bump xcode to 16.4

closes: #17446

Signed-off-by: Philip H. <47042125+pheiduck@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f2e06d..47fdc0e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -387,7 +387,7 @@
         if: matrix.runner == 'macos-15'
         run: |
           # Xcode 16 has compiler bugs which are fixed in 16.2+
-          sudo xcode-select -s /Applications/Xcode_16.3.app/Contents/Developer
+          sudo xcode-select -s /Applications/Xcode_16.4.app/Contents/Developer
 
       - name: Set up environment
         run: |