Bump bcrypt from 3.1.20 to 3.1.22

Bumps [bcrypt](https://github.com/bcrypt-ruby/bcrypt-ruby) from 3.1.20 to 3.1.22.
- [Release notes](https://github.com/bcrypt-ruby/bcrypt-ruby/releases)
- [Changelog](https://github.com/bcrypt-ruby/bcrypt-ruby/blob/master/CHANGELOG)
- [Commits](bcrypt-ruby/bcrypt-ruby@v3.1.20...v3.1.22)

---
updated-dependencies:
- dependency-name: bcrypt
  dependency-version: 3.1.22
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -158,7 +158,7 @@ GEM
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
     base64 (0.3.0)
-    bcrypt (3.1.20)
+    bcrypt (3.1.22)
     bigdecimal (4.1.0)
     bindata (2.5.1)
     bindex (0.8.1)