Drop dedicated pipeline for Mac ARM, use matrix build.

.github/workflows/build_wheels_macos.yml

@@ -1,4 +1,4 @@
-name: macOS x86_64
+name: MacOS
 
 on:
   pull_request:
@@ -8,7 +8,6 @@ on:
     paths-ignore:
       - '.github/workflows/build_wheels_manylinux*'
       - '.github/workflows/build_wheels_windows*'
-      - '.github/workflows/build_wheels_macos_m1.yml'
   release:
     types: [published, edited]
   schedule:
@@ -18,12 +17,12 @@ on:
 
 jobs:
   Build:
-    runs-on: macos-15-intel
+    runs-on: ${{ matrix.platform == 'arm64' && 'macos-15' || 'macos-15-intel' }}
     strategy:
       fail-fast: false
       matrix:
         python-version: ['3.10']
-        platform: [x64]
+        platform: [x86_64, arm64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
         build_sdist: [0]
@@ -40,7 +39,7 @@ jobs:
       CONFIG_PATH: travis_config.sh
       USE_CCACHE: 1
       UNICODE_WIDTH: 32
-      PLAT: x86_64
+      PLAT: ${{ matrix.platform }}
       SDIST: ${{ matrix.build_sdist || 0 }}
       ENABLE_HEADLESS: ${{ matrix.without_gui }}
       ENABLE_CONTRIB: ${{ matrix.with_contrib }}
@@ -80,20 +79,20 @@ jobs:
 
   Test:
     needs: [Build]
-    runs-on: macos-15-intel
+    runs-on: ${{ matrix.platform == 'arm64' && 'macos-15' || 'macos-15-intel' }}
     strategy:
       fail-fast: false
       matrix:
         python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
-        platform: [x64]
+        platform: [x86_64, arm64]
         with_contrib: [0, 1]
         without_gui: [0, 1]
         build_sdist: [0]
     env:
       ACTIONS_ALLOW_UNSECURE_COMMANDS: true
       MB_PYTHON_VERSION: ${{ matrix.python-version }}
       CONFIG_PATH: travis_config.sh
-      PLAT: x86_64
+      PLAT: ${{ matrix.platform }}
       OPENCV_TEST_DATA_PATH: ${{ github.workspace }}/opencv_extra/testdata
       PYLINT_TEST_FILE: ${{ github.workspace }}/opencv/samples/python/squares.py
       PIP_INDEX_URL: https://pypi.tuna.tsinghua.edu.cn/simple