vectorscan/5.4.9

What's Changed

• Major change: Enable SVE & SVE2 builds and make it a supported architecture! (thanks to @abondarev84)
• Fix various clang-related bugs
• Fix Aarch64 bug in Parser.rl because of char signedness. Make unsigned char the default in the Parser for all architectures.
• Fix Power bug, multiple tests were failing.
• C++20 related change, use prefixed assume_aligned to avoid conflict with C++20 std::assume_aligned.

related PRs:
#125
#129
#131
#136
#141
#142
#143

Full Changelog: vectorscan/5.4.8...vectorscan/5.4.9