chore(deps): Bump mongodb from 2.5.0 to 2.6.0

Bumps [mongodb](https://github.com/mongodb/mongo-rust-driver) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/mongodb/mongo-rust-driver/releases)
- [Commits](mongodb/mongo-rust-driver@v2.5.0...v2.6.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -275,7 +275,7 @@ logfmt = { version = "0.0.2", default-features = false, optional = true }
 lru = { version = "0.10.0", default-features = false, optional = true }
 maxminddb = { version = "0.23.0", default-features = false, optional = true }
 md-5 = { version = "0.10", default-features = false, optional = true }
-mongodb = { version = "2.5.0", default-features = false, features = ["tokio-runtime"], optional = true }
+mongodb = { version = "2.6.0", default-features = false, features = ["tokio-runtime"], optional = true }
 nats = { version = "0.24.0", default-features = false, optional = true }
 nkeys = { version = "0.3.0", default-features = false, optional = true }
 nom = { version = "7.1.3", default-features = false, optional = true }