Update pyproject.toml - attempt to force zlib bundling

Author: Spitfire1900

pyproject.toml

@@ -21,7 +21,14 @@ repair-wheel-command = "LD_LIBRARY_PATH=/project/ci/lib auditwheel repair -w {de
 
 [tool.cibuildwheel.macos]
 archs = ["universal2"]
-environment = {LIBGIT2_VERSION="1.9.0", LIBSSH2_VERSION="1.11.1", OPENSSL_VERSION="3.2.3", LIBGIT2="/Users/runner/work/pygit2/pygit2/ci"}
+environment = {
+  LIBGIT2_VERSION = "1.9.0",
+  LIBSSH2_VERSION = "1.11.1",
+  OPENSSL_VERSION = "3.2.3",
+  LIBGIT2 = "/Users/runner/work/pygit2/pygit2/ci",
+  CFLAGS = "-I/usr/local/include",
+  LDFLAGS = "-L/usr/local/lib"
+}
 repair-wheel-command = "DYLD_LIBRARY_PATH=/Users/runner/work/pygit2/pygit2/ci/lib delocate-wheel --require-archs {delocate_archs} -w {dest_dir} {wheel}"
 
 [tool.ruff]