chore(deps): bump num-bigint from 0.4.4 to 0.4.5 (#1201)

Bumps [num-bigint](https://github.com/rust-num/num-bigint) from 0.4.4 to 0.4.5.
- [Changelog](https://github.com/rust-num/num-bigint/blob/master/RELEASES.md)
- [Commits](rust-num/num-bigint@num-bigint-0.4.4...num-bigint-0.4.5)

---
updated-dependencies:
- dependency-name: num-bigint
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

aries/aries_vcx/Cargo.toml

@@ -65,7 +65,7 @@ serde_derive = "1.0.97"
 regex = "1.1.0"
 base64 = "0.21.4"
 sha2 = "0.10.7"
-num-bigint = "0.4.3"
+num-bigint = "0.4.5"
 futures = { version = "0.3", default-features = false }
 uuid = { version = "1.4.1", default-features = false, features = ["v4"] }
 strum = "0.25.0"