Bump the backend group with 4 updates

Bumps the backend group with 4 updates: [anyhow](https://github.com/dtolnay/anyhow), [regex](https://github.com/rust-lang/regex), [serde](https://github.com/serde-rs/serde) and [tokio](https://github.com/tokio-rs/tokio).


Updates `anyhow` from 1.0.90 to 1.0.91
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](dtolnay/anyhow@1.0.90...1.0.91)

Updates `regex` from 1.11.0 to 1.11.1
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](rust-lang/regex@1.11.0...1.11.1)

Updates `serde` from 1.0.210 to 1.0.213
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](serde-rs/serde@v1.0.210...v1.0.213)

Updates `tokio` from 1.40.0 to 1.41.0
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.40.0...tokio-1.41.0)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: regex
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: backend
- dependency-name: tokio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  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 = "1.0.90"
+anyhow = "1.0.91"
 async-trait = "0.1.83"
 axum = { version = "0.7.7", features = ["macros"] }
 bincode = "1.3.3"
@@ -33,9 +33,9 @@ mockito = "1.5.0"
 openssl = { version = "0.10.68", features = ["vendored"] }
 postgres-openssl = "0.5.0"
 postgres-types = { version = "0.2.8", features = ["derive"] }
-regex = "1.11.0"
+regex = "1.11.1"
 reqwest = { version = "0.12.8", features = ["json"] }
-serde = { version = "1.0.210", features = ["derive"] }
+serde = { version = "1.0.213", features = ["derive"] }
 serde_json = "1.0.132"
 serde_qs = "0.13.0"
 serde_yaml = "0.9.34"
@@ -46,7 +46,7 @@ time = { version = "0.3.36", features = [
     "parsing",
     "serde",
 ] }
-tokio = { version = "1.40.0", features = [
+tokio = { version = "1.41.0", features = [
     "macros",
     "process",
     "rt-multi-thread",