[Build] update target for macOS deployment

Author: haochengxia

pyproject.toml

@@ -83,7 +83,7 @@ skip = ["*-win32", "*-manylinux_i686", "*-musllinux*", "pp*"]
 
 # Set the environment variable for the wheel build step.
 # NOTE(haocheng): we enable all the optional features for the wheel build.
-environment = { LCS_BUILD_DIR = "{project}/src/libCacheSim/build", MACOSX_DEPLOYMENT_TARGET = "14.0", CMAKE_ARGS = "-DENABLE_3L_CACHE=ON -DENABLE_GLCACHE=ON -DENABLE_LRB=ON" }
+environment = { LCS_BUILD_DIR = "{project}/src/libCacheSim/build", MACOSX_DEPLOYMENT_TARGET = "15.0", CMAKE_ARGS = "-DENABLE_3L_CACHE=ON -DENABLE_GLCACHE=ON -DENABLE_LRB=ON" }
 
 # Test that the wheel can be imported
 test-command = "python -c 'import libcachesim; print(\"Import successful\")'; cp -r {project}/tests .; python -m pytest tests/ -v -m 'not optional'; python -m pytest tests/ -v -m 'optional'"