Update base64-serde requirement from 0.7.0 to 0.8.0

Updates the requirements on [base64-serde](https://github.com/marshallpierce/base64-serde) to permit the latest version.
- [Changelog](https://github.com/marshallpierce/base64-serde/blob/master/RELEASE-NOTES.md)
- [Commits](marshallpierce/base64-serde@v0.7.0...v0.8.0)

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

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

Cargo.toml

@@ -13,7 +13,7 @@ edition = "2021"
 
 [dependencies]
 base64 = "0.22.1"
-base64-serde = "0.7.0"
+base64-serde = "0.8.0"
 byteorder = "1.4"
 lazy_static = "1.5.0"
 serde = { version = "1.0.210", features = ["derive"] }