Full rebuild January 2026 bump ros2-distro-mutex to 0.13.0 and build number to 15 #330

Job	Run time
build (ubuntu-24.04-arm, linux-aarch64, output/linux-aarch64)	1m 23s
build (ubuntu-latest, linux-64, output/linux-64)	1m 35s
build (macos-15-intel, osx-64, output/osx-64)	2m 59s
build (windows-2022, win-64, C:/bld/win-64)	3m 34s
build (macos-14, osx-arm64, output/osx-arm64)	2m 4s
	11m 35s

Provide feedback