Update axum-login requirement from 0.15.3 to 0.16.0

Updates the requirements on [axum-login](https://github.com/maxcountryman/axum-login) to permit the latest version.
- [Release notes](https://github.com/maxcountryman/axum-login/releases)
- [Changelog](https://github.com/maxcountryman/axum-login/blob/main/CHANGELOG.md)
- [Commits](maxcountryman/axum-login@v0.15.3...v0.16.0)

---
updated-dependencies:
- dependency-name: axum-login
  dependency-type: direct:production
...

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

Cargo.toml

@@ -55,7 +55,7 @@ askama_axum = { version = "0.4.0", default-features = false, features = ["urlenc
 async-trait = "0.1.81"
 axum = { version = "0.7.5", features = ["form", "http1", "http2", "macros", "tokio", "tower-log"] }
 axum-client-ip = "0.6.0"
-axum-login = "0.15.3"
+axum-login = "0.16.0"
 axum-messages = "0.6.1"
 base64 = "0.22.1"
 clap = { version = "4.5.8", features = ["cargo", "derive", "unicode"] }