ccache: upgrade 4.10 -> 4.10.1

ccache: upgrade 4.10 -> 4.10.1

License-Update: Bundle Fmt again

Changelog:
===========
- Fixed prefix command lookup from PATH.
- Fixed detection and usage of system blake3.
- Find CppHttplib named libhttplib.so as well.
- Removed Xcode assembly workaround for zstd.
- Added bundled subset of Fmt again for convenience.
- Removed no longer needed workaround when building downloaded Zstd.
- Documentation improvements
- Clarified that --set-config writes to the configuration file.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>