Futz with the macOS CI target definitions (#902)

Author: zanieb

.github/workflows/macos.yml

@@ -177,4 +177,10 @@ jobs:
         run: |
           chmod +x build/pythonbuild
 
-          build/pythonbuild validate-distribution --macos-sdks-path macosx-sdks --run dist/*.tar.zst
+          if [ "${MATRIX_RUN}" == "true" ]; then
+            EXTRA_ARGS="--run"
+          fi
+
+          build/pythonbuild validate-distribution --macos-sdks-path macosx-sdks ${EXTRA_ARGS} dist/*.tar.zst
+        env:
+          MATRIX_RUN: ${{ matrix.run }}

ci-runners.yaml

@@ -11,7 +11,7 @@ depot-ubuntu-22.04-arm:
   free: false
 
 depot-macos-latest:
-  arch: x86_64
+  arch: aarch64
   platform: darwin
   free: false
 
@@ -21,7 +21,7 @@ ubuntu-latest:
   free: true
 
 macos-latest:
-  arch: x86_64
+  arch: aarch64
   platform: darwin
   free: true
 

ci-targets.yaml

@@ -36,6 +36,7 @@ darwin:
           - freethreaded+debug
           - freethreaded+pgo+lto
         minimum-python-version: "3.13"
+    run: true
 
 linux:
   aarch64-unknown-linux-gnu: