Bump the backend group with 2 updates

Bumps the backend group with 2 updates: [serde](https://github.com/serde-rs/serde) and [tower](https://github.com/tower-rs/tower).


Updates `serde` from 1.0.215 to 1.0.216
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.215...v1.0.216)

Updates `tower` from 0.5.1 to 0.5.2
- [Release notes](https://github.com/tower-rs/tower/releases)
- [Commits](tower-rs/tower@tower-0.5.1...tower-0.5.2)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: tower
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
...

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

Cargo.toml

@@ -35,7 +35,7 @@ postgres-openssl = "0.5.0"
 postgres-types = { version = "0.2.8", features = ["derive"] }
 regex = "1.11.1"
 reqwest = { version = "0.12.9", features = ["json"] }
-serde = { version = "1.0.215", features = ["derive"] }
+serde = { version = "1.0.216", features = ["derive"] }
 serde_json = "1.0.133"
 serde_qs = "0.13.0"
 serde_yaml = "0.9.34"
@@ -58,7 +58,7 @@ tokio-postgres = { version = "0.7.12", features = [
     "with-serde_json-1",
     "with-uuid-1",
 ] }
-tower = { version = "0.5.1", features = ["util"] }
+tower = { version = "0.5.2", features = ["util"] }
 tower-http = { version = "0.6.2", features = ["fs", "set-header", "trace"] }
 tracing = "0.1.41"
 tracing-subscriber = { version = "0.3.19", features = ["env-filter", "json"] }