Bump base64 from 0.21.7 to 0.22.0 in /src/_bcrypt (#752)

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](https://github.com/marshallpierce/rust-base64/compare/v0.21.7...v0.22.0)

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

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

src/_bcrypt/Cargo.lock

@@ -14,13 +14,19 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
 [[package]]
 name = "bcrypt"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d1c9c15093eb224f0baa400f38fcd713fc1391a6f1c389d886beef146d60a3"
 dependencies = [
- "base64",
+ "base64 0.21.7",
  "blowfish",
  "getrandom",
  "subtle",
@@ -42,7 +48,7 @@ dependencies = [
 name = "bcrypt-rust"
 version = "0.1.0"
 dependencies = [
- "base64",
+ "base64 0.22.0",
  "bcrypt",
  "bcrypt-pbkdf",
  "getrandom",

src/_bcrypt/Cargo.toml

@@ -9,7 +9,7 @@ publish = false
 pyo3 = { version = "0.20.3", features = ["abi3"] }
 bcrypt = "0.15"
 bcrypt-pbkdf = "0.10.0"
-base64 = "0.21.7"
+base64 = "0.22.0"
 subtle = "2.5"
 getrandom = "0.2"