v0.3.0

Release 0.3.0

Release 0.3.0 is the new pre-release of Bazel C/C++ Toolchains module.

Changes:

• Added support for AutoSD toolchain
• Added support for Bazel 9
• Added support for toolchain definition based only on base platform constraints. To use it, new extension argument is provided called:
  `use_base_constraints_only'
• Added support for 2 additional platform constraints under variant:
  • sdk_version
  • glibc_version
• Fixed improper compiler flag separation for QNX
• Move -Wuseless-cast from strict warnings to all cxx warnings