chore(deps): update base64 requirement from 0.21.0 to 0.22.0 (#279)

Updates the requirements on [base64](https://github.com/marshallpierce/rust-base64) to permit the latest version.
- [Changelog](https://github.com/marshallpierce/rust-base64/blob/master/RELEASE-NOTES.md)
- [Commits](marshallpierce/rust-base64@v0.21.0...v0.22.0)

---
updated-dependencies:
- dependency-name: base64
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

engineioxide/Cargo.toml

@@ -33,7 +33,7 @@ http-body-util.workspace = true
 pin-project-lite.workspace = true
 hyper-util = { workspace = true, features = ["tokio"] }
 
-base64 = "0.21.0"
+base64 = "0.22.0"
 bytes = "1.4.0"
 rand = "0.8.5"