chore(cargo): update postgres-types requirement from 0.X.X to 0.2.5

Updates the requirements on [postgres-types](https://github.com/sfackler/rust-postgres) to permit the latest version.
- [Release notes](https://github.com/sfackler/rust-postgres/releases)
- [Commits](sfackler/rust-postgres@postgres-types-v0.1.0-alpha.1...postgres-types-v0.2.5)

---
updated-dependencies:
- dependency-name: postgres-types
  dependency-type: direct:production
...

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

Cargo.toml

@@ -36,6 +36,6 @@ features = ["with-serde_json-1" , "with-uuid-1" , "with-chrono-0_4"]
 optional = true
 
 [dependencies.postgres-types]
-version = "0.X.X"
+version = "0.2.5"
 features = ["derive"]
 optional = true