Update bitflags requirement from 1.2 to 2.2

[dependabot[bot]]

Updates the requirements on bitflags to permit the latest version.

Release notes

Sourced from bitflags's releases.

2.2.1

What's Changed

• Refactor attribute filtering to apply per-flag by @​KodrAus in bitflags/bitflags#345
• Prepare for 2.2.1 release by @​KodrAus in bitflags/bitflags#346

Full Changelog: https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1

Changelog

Sourced from bitflags's changelog.

2.2.1

What's Changed

• Refactor attribute filtering to apply per-flag by @​KodrAus in bitflags/bitflags#345

Full Changelog: https://github.com/bitflags/bitflags/compare/2.2.0...2.2.1

2.2.0

What's Changed

• Create SECURITY.md by @​KodrAus in bitflags/bitflags#338
• add docs to describe the behavior of multi-bit flags by @​nicholasbishop in bitflags/bitflags#340
• Add support for bytemuck by @​KodrAus in bitflags/bitflags#336
• Add a top-level macro for filtering attributes by @​KodrAus in bitflags/bitflags#341

New Contributors

• @​nicholasbishop made their first contribution in bitflags/bitflags#340

Full Changelog: https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0

2.1.0

What's Changed

• Add docs for the internal Field0 and examples of formatting/parsing by @​KodrAus in bitflags/bitflags#328
• Add support for arbitrary by @​KodrAus in bitflags/bitflags#324
• Fix up missing docs for consts within consts by @​KodrAus in bitflags/bitflags#330
• Ignore clippy lint in generated code by @​Jake-Shadle in bitflags/bitflags#331

New Contributors

• @​Jake-Shadle made their first contribution in bitflags/bitflags#331

Full Changelog: https://github.com/bitflags/bitflags/compare/2.0.2...2.1.0

2.0.2

What's Changed

• Fix up missing isize and usize Bits impls by @​KodrAus in bitflags/bitflags#321

Full Changelog: https://github.com/bitflags/bitflags/compare/2.0.1...2.0.2

2.0.1

What's Changed

• Fix up some docs issues by @​KodrAus in bitflags/bitflags#309
• Make empty_flag() const. by @​tormeh in bitflags/bitflags#313
• Fix formatting of multi-bit flags with partial overlap by @​KodrAus in bitflags/bitflags#316

New Contributors

• @​tormeh made their first contribution in bitflags/bitflags#313

... (truncated)

Commits

• 0c318c0 Merge pull request #346 from KodrAus/cargo/2.2.1
• a51c053 prepare for 2.2.1 release
• 638707f Merge pull request #345 from KodrAus/fix/recursion
• f3f3b6a add docs to example generated flags
• 588d132 refactor attribute filtering to apply per-flag
• cbcafa7 Merge pull request #342 from KodrAus/cargo/2.2.0
• 61df53a prepare for 2.2.0 release
• 780f456 Merge pull request #341 from KodrAus/fix/doc-alias
• 405e7de updates macro field names
• 561fe50 add a top-level macro for filtering attributes
• Additional commits viewable in compare view

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