build(deps): bump yara-x from 1.20.0 to 1.21.0 in /.github/requirements in the minor-and-patch group across 1 directory

[dependabot]

Bumps the minor-and-patch group with 1 update in the /.github/requirements directory: yara-x.

Updates yara-x from 1.20.0 to 1.21.0

Release notes

Sourced from yara-x's releases.

v1.21.0

• Add Scanner.set_module_output to Python bindings (#744).
• Add debug command for showing atoms (#748).
• Allow reading scan lists from stdin (#753).
• Performance improvements (#747, #750, #755, #756, #758, #775, #781, #782)
• Add support for more ELF machine types in elf module (23a75aa).
• BUGFIX: make yara-x-py's module features actually work (#766).
• BUGFIX: allow passing pathlib.Path to add_include_dir in the Python API (b846b3b).
• BUGFIX: reduce memory usage in parser (#761).
• BUGFIX: exclude non-matching files in NDJSON output (61a2dc2).
• BUGFIX: false positives/negatives when a rule containing a file header constraint shared a pattern with some other rule (#771, #784).

Contributors: @​CfirTsabari, @​matt-acsc, @​king-tero

Commits

• 7b2637d chore: bump version to 1.21.0.
• 1b428d8 chore: upgrade dependencies.
• 8e8bc78 tests: fix test case.
• f093332 chore: bump serialization format version.
• df102df perf(scanner): adjust memory-map file size threshold
• ffc4793 fix: restore limit controlling when to show warning message due to too many m...
• 2367413 style: run cargo fmt.
• 1dbdb15 refactor: associate fast-scan match limits directly with patterns
• 72979f0 perf: improve logic for anchoring pattern. (#782)
• a41d91a perf(scanner): stop tracking pattern matches in fast-scan mode once constant ...
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