meson: updated to 0.57.1

Release 0.57.0
* Project version can be specified with a file
* Support for reading files at configuration time with the fs module
* meson install --dry-run
* Experimental support for C++ modules in Visual Studio
* Qt6 module
* Unstable Rust module
* Meson test() now accepts protocol : 'rust'
* MSVC/Clang-Cl Argument Changes/Cleanup
* Buildtype remains even if dependent options are changed
* Passing internal dependencies to the compiler object
* unstable_external_project improvements
* gnome.post_install()
* "Edit and continue" (/ZI) is no longer used by default for Visual Studio
* Minimum required Python version updated to 3.6
* Packaging a subproject
* custom_target() and run_target() now accepts an env keyword argument
* summary() accepts external programs or dependencies
* CMake find_package version support
* meson test only rebuilds test dependencies
* The add_*_script methods now accept a File as the first argument
* Unity build with Vala disabled
* New logging format for meson test
* Specify DESTDIR on command line
* Skip install scripts if DESTDIR is set
* Add support for prelinked static libraries
* Rust now has an std option
* Ctrl-C behavior in meson test
* Support added for LLVM's thinLTO
* test() timeout and timeout_multiplier value <= 0
* Knob to control LTO thread
* summary() now uses left alignment for both keys and values
* // is now allowed as a function id for meson rewrite.
* Get keys of configuration data object

(adam)