build(deps): bump diesel_migrations from 2.3.0 to 2.3.1

Bumps [diesel_migrations](https://github.com/diesel-rs/diesel) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/diesel-rs/diesel/releases)
- [Changelog](https://github.com/diesel-rs/diesel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/diesel-rs/diesel/commits)

---
updated-dependencies:
- dependency-name: diesel_migrations
  dependency-version: 2.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -60,7 +60,7 @@ diesel-async = { version = "0.7.3", features = ["deadpool", "async-connection-wr
 diesel-derive-enum = { version = "2.1.0", features = ["postgres"] }
 diesel-dynamic-schema = { version = "0.2.3", features = ["postgres"] }
 diesel_derives = "2.3.6"
-diesel_migrations = "2.1.0"
+diesel_migrations = "2.3.1"
 envconfig = "0.11.1"
 graph = { path = "./graph" }
 graph-core = { path = "./core" }