build(deps): bump base64 from 0.21.7 to 0.22.0 (#470)

Bumps [base64](https://github.com/marshallpierce/rust-base64) from 0.21.7 to 0.22.0.
- [Changelog](https://github.com/marshallpierce/rust-base64/blob/master/RELEASE-NOTES.md)
- [Commits](marshallpierce/rust-base64@v0.21.7...v0.22.0)

---
updated-dependencies:
- dependency-name: base64
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -70,4 +70,4 @@ x509-cert = { version = "0.2", default-features = false, features = ["std"] }
 tap = "1"
 semver = "1"
 url = "2.5"
-base64 = "0.21"
+base64 = "0.22"