chore(deps): bump humantime from 2.2.0 to 2.3.0 in /backend

Bumps [humantime](https://github.com/chronotope/humantime) from 2.2.0 to 2.3.0.
- [Release notes](https://github.com/chronotope/humantime/releases)
- [Commits](chronotope/humantime@v2.2.0...v2.3.0)

---
updated-dependencies:
- dependency-name: humantime
  dependency-version: 2.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

backend/Cargo.lock

@@ -9,7 +9,7 @@ anyhow = { workspace = true }
 clap = { workspace = true }
 derive_more = { workspace = true }
 dotenvy = { workspace = true }
-humantime = { version = "2.2.0" }
+humantime = { version = "2.3.0" }
 if_chain = "1.0.3"
 itertools = { version = "0.14.0" }
 k8s-openapi = { workspace = true }