Bump the backend group with 3 updates

Bumps the backend group with 3 updates: [anyhow](https://github.com/dtolnay/anyhow), [postgres-types](https://github.com/sfackler/rust-postgres) and [tokio-postgres](https://github.com/sfackler/rust-postgres).


Updates `anyhow` from 1.0.88 to 1.0.89
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](dtolnay/anyhow@1.0.88...1.0.89)

Updates `postgres-types` from 0.2.7 to 0.2.8
- [Release notes](https://github.com/sfackler/rust-postgres/releases)
- [Commits](sfackler/rust-postgres@postgres-types-v0.2.7...postgres-types-v0.2.8)

Updates `tokio-postgres` from 0.7.11 to 0.7.12
- [Release notes](https://github.com/sfackler/rust-postgres/releases)
- [Commits](sfackler/rust-postgres@tokio-postgres-v0.7.11...tokio-postgres-v0.7.12)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: postgres-types
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: tokio-postgres
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
...

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

Cargo.toml

@@ -13,7 +13,7 @@ edition = "2021"
 rust-version = "1.81"
 
 [workspace.dependencies]
-anyhow = "1.0.88"
+anyhow = "1.0.89"
 async-trait = "0.1.82"
 axum = { version = "0.7.5", features = ["macros"] }
 bincode = "1.3.3"
@@ -32,7 +32,7 @@ mockall = "0.13.0"
 mockito = "1.5.0"
 openssl = { version = "0.10.66", features = ["vendored"] }
 postgres-openssl = "0.5.0"
-postgres-types = { version = "0.2.7", features = ["derive"] }
+postgres-types = { version = "0.2.8", features = ["derive"] }
 regex = "1.10.6"
 reqwest = { version = "0.12.7", features = ["json"] }
 serde = { version = "1.0.210", features = ["derive"] }
@@ -53,7 +53,7 @@ tokio = { version = "1.40.0", features = [
     "signal",
     "time",
 ] }
-tokio-postgres = { version = "0.7.11", features = [
+tokio-postgres = { version = "0.7.12", features = [
     "with-time-0_3",
     "with-serde_json-1",
     "with-uuid-1",