Update OS versions used by the convex-py CI (#52409)

GitOrigin-RevId: 583aa9fa4180f578c18e4b415aa427faf670ae5c

Author: Nicolapps

.github/workflows/python-client-build.yml

@@ -135,8 +135,13 @@ jobs:
         platform:
           - runner: windows-latest
             target: x64
+            python_arch: x64
           - runner: windows-latest
             target: x86
+            python_arch: x86
+          - runner: windows-11-arm
+            target: aarch64
+            python_arch: arm64
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
@@ -167,9 +172,9 @@ jobs:
     strategy:
       matrix:
         platform:
-          - runner: macos-13
+          - runner: macos-15-intel
             target: x86_64
-          - runner: macos-14
+          - runner: macos-latest
             target: aarch64
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6