Bump chrono from 0.4.26 to 0.4.27 (#1286)

Bumps [chrono](https://github.com/chronotope/chrono) from 0.4.26 to 0.4.27.
- [Release notes](https://github.com/chronotope/chrono/releases)
- [Changelog](https://github.com/chronotope/chrono/blob/main/CHANGELOG.md)
- [Commits](https://github.com/chronotope/chrono/compare/v0.4.26...v0.4.27)

---
updated-dependencies:
- dependency-name: chrono
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

substrate/utils/frame/generate-bags/Cargo.toml

@@ -17,5 +17,5 @@ pallet-staking = { path = "../../../frame/staking" }
 sp-staking = { path = "../../../primitives/staking" }
 
 # third party
-chrono = { version = "0.4.19" }
+chrono = { version = "0.4.27" }
 num-format = "0.4.3"