Bump enumflags2 from 0.6.4 to 0.7.4 (#11108)

* Bump enumflags2 from 0.6.4 to 0.7.4

Bumps [enumflags2](https://github.com/NieDzejkob/enumflags2) from 0.6.4 to 0.7.4.
- [Release notes](https://github.com/NieDzejkob/enumflags2/releases)
- [Commits](https://github.com/NieDzejkob/enumflags2/compare/v0.6.4...v0.7.4)

---
updated-dependencies:
- dependency-name: enumflags2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* use `#[bitflags]` attribute macro

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

substrate/Cargo.lock

@@ -1889,18 +1889,18 @@ dependencies = [
 
 [[package]]
 name = "enumflags2"
-version = "0.6.4"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83c8d82922337cd23a15f88b70d8e4ef5f11da38dd7cdb55e84dd5de99695da0"
+checksum = "1b3ab37dc79652c9d85f1f7b6070d77d321d2467f5fe7b00d6b7a86c57b092ae"
 dependencies = [
  "enumflags2_derive",
 ]
 
 [[package]]
 name = "enumflags2_derive"
-version = "0.6.4"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "946ee94e3dbf58fdd324f9ce245c7b238d46a66f00e86a020b71996349e46cce"
+checksum = "f58dc3c5e468259f19f2d46304a6b28f1c3d034442e14b322d2b850e36f6d5ae"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -11586,9 +11586,9 @@ version = "1.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ee73e6e4924fe940354b8d4d98cad5231175d615cd855b758adc658c0aac6a0"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "digest 0.10.3",
- "rand 0.6.5",
+ "rand 0.8.4",
  "static_assertions",
 ]