build(deps): bump chrono from 0.4.26 to 0.4.31 (#4876)

Bumps [chrono](https://github.com/chronotope/chrono) from 0.4.26 to 0.4.31.
- [Release notes](https://github.com/chronotope/chrono/releases)
- [Changelog](https://github.com/chronotope/chrono/blob/main/CHANGELOG.md)
- [Commits](chronotope/chrono@v0.4.26...v0.4.31)

---
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>

graph/Cargo.toml

@@ -13,7 +13,7 @@ bytes = "1.0.1"
 cid = "0.10.1"
 diesel = { version = "1.4.8", features = ["postgres", "serde_json", "numeric", "r2d2", "chrono"] }
 diesel_derives = "1.4"
-chrono = "0.4.25"
+chrono = "0.4.31"
 envconfig = "0.10.0"
 Inflector = "0.11.3"
 isatty = "0.1.9"