Update to macos 13 also for legacy wheels

Author: Legrandin

.github/workflows/wheels.yml

@@ -80,7 +80,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ ubuntu-22.04, windows-2019, macos-12 ]
+        os: [ ubuntu-22.04, windows-2019, macos-13 ]
         arch: [ multi-arch ]
         # Python 2 on Windows requires manual toolchain setup (per-arch) due to newer MSVC used here
         exclude: