chore(github): switch to macos-15

Author: JamieMason

.env.darwin-arm64

@@ -2,7 +2,7 @@ NAME=darwin-arm64
 NODE_ARCH=arm64
 NODE_OS=darwin
 NODE_PKG_NAME=syncpack-darwin-arm64
-OS=macos-13
+OS=macos-15
 TARGET=aarch64-apple-darwin
 RUST_BINARY_PATH="target/${TARGET}/release/syncpack"
 NODE_PKG_DIR_PATH="npm/packages/${NODE_PKG_NAME}"

.env.darwin-x64

@@ -2,7 +2,7 @@ NAME=darwin-x64
 NODE_ARCH=x64
 NODE_OS=darwin
 NODE_PKG_NAME=syncpack-darwin-x64
-OS=macos-13
+OS=macos-15-intel
 TARGET=x86_64-apple-darwin
 RUST_BINARY_PATH="target/${TARGET}/release/syncpack"
 NODE_PKG_DIR_PATH="npm/packages/${NODE_PKG_NAME}"