build(deps): bump futures from 0.3.30 to 0.3.31

Bumps [futures](https://github.com/rust-lang/futures-rs) from 0.3.30 to 0.3.31.
- [Release notes](https://github.com/rust-lang/futures-rs/releases)
- [Changelog](https://github.com/rust-lang/futures-rs/blob/master/CHANGELOG.md)
- [Commits](rust-lang/futures-rs@0.3.30...0.3.31)

---
updated-dependencies:
- dependency-name: futures
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -39,7 +39,7 @@ openidconnect = "3.4.0"
 async-trait = "0.1.77"
 ldap3 = { version = "0.11.5", default-features = false, features = ["tls-rustls"] }
 reqwest = { version = "0.11.25", features = ["rustls", "__tls", "rustls-tls", "stream", "webpki-roots", "rustls-tls-webpki-roots"], default-features = false }
-futures = "0.3.30"
+futures = "0.3.31"
 futures-util = { version = "0.3.30", default-features = false, features = ["io"] }
 htpasswd-verify = { git = "https://github.com/twistedfall/htpasswd-verify", rev = "ff14703083cbd639f7d05622b398926f3e718d61" }