Bump bitflags from 2.1.0 to 2.2.1 (#73)

Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.1.0...2.2.1)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -16,9 +16,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.1.0"
+version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c70beb79cbb5ce9c4f8e20849978f34225931f665bb49efa6982875a4d5facb3"
+checksum = "24a6904aef64d73cf10ab17ebace7befb918b82164785cb89907993be7f83813"
 
 [[package]]
 name = "bytecount"
@@ -177,7 +177,7 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 name = "mos6502"
 version = "0.5.0"
 dependencies = [
- "bitflags 2.1.0",
+ "bitflags 2.2.1",
  "log",
  "num",
  "skeptic",

Cargo.toml

@@ -41,7 +41,7 @@ edition = "2021"
 name = "mos6502"
 
 [dependencies]
-bitflags = "2.1.0"
+bitflags = "2.2.1"
 log = "0.4.17"
 
 [dependencies.num]