Bump minimum OS X deployment version to 10.15 (#1893)

* Bump minimum OS X deployment version to 10.15

Signed-off-by: Darby Johnston <[email protected]>

* Update workflow macOS target

Signed-off-by: Darby Johnston <[email protected]>

---------

Signed-off-by: Darby Johnston <[email protected]>

Author: darbyjohnston

.github/workflows/python-package.yml

@@ -185,7 +185,7 @@ jobs:
           CIBW_ARCHS_LINUX: native
           CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014
           CIBW_MANYLINUX_AARCH64_IMAGE: manylinux2014
-          MACOSX_DEPLOYMENT_TARGET: 10.14
+          MACOSX_DEPLOYMENT_TARGET: 10.15
 
       - uses: actions/upload-artifact@v4
         with:

CMakeLists.txt

@@ -16,7 +16,7 @@ set(OTIO_AUTHOR_EMAIL "[email protected]")
 set(OTIO_LICENSE      "Modified Apache 2.0 License")
 
 set(CMAKE_OSX_ARCHITECTURES "arm64;x86_64" CACHE STRING "")
-set(CMAKE_OSX_DEPLOYMENT_TARGET "10.14" CACHE STRING "Minimum OS X deployment version")
+set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment version")
 
 project(OpenTimelineIO VERSION ${OTIO_VERSION} LANGUAGES C CXX)