Update base64-url requirement from 2.0.0 to 3.0.0 (#241)

Updates the requirements on [base64-url](https://github.com/magiclen/base64-url) to permit the latest version.
- [Commits](magiclen/base64-url@v2.0.0...v3.0.0)

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

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

Cargo.toml

@@ -44,7 +44,7 @@ serde_json = { version = "1.0.66", optional = true, default-features = false, fe
     "std",
 ] }
 uriparse = { version = "0.6.3", optional = true }
-base64-url = { version = "2.0.0", optional = true }
+base64-url = { version = "3.0.0", optional = true }
 abnf_to_pest = "0.5.1"
 pest_meta = "2.1.3"
 pest_vm = "2.1.0"