perf: precompile tuple ABI type regex

[BobTheBuidler]

What I did

Precompiled the tuple ABI type regex used by ABI tuple alignment.

fixes: N/A

How I did it

The regex is compiled once at module import time and reused by _get_tuple_type_str_and_dims(). The parsing behavior is covered with tuple-array cases, including fixed-size tuple arrays.

How to verify it

Run python -m pytest tests/core/abi-utils/test_abi_utils.py, tox -e py310-core, and tox -e py310-lint.

Local microbench for _get_tuple_type_str_and_dims("tuple[]"): 371 nsec per loop on upstream base, 211 nsec per loop on this branch, about 43% faster. A public get_aligned_abi_inputs() tuple-array call measured 4.48 usec per loop on upstream base and 3.71 usec per loop on this branch, about 17% faster.

Checklist

• All changes are completed
• Change is covered in tests
• Documentation is complete