build(deps): bump cf-uaa-lib from 4.0.7 to 4.0.8

Bumps [cf-uaa-lib](https://github.com/cloudfoundry/cf-uaa-lib) from 4.0.7 to 4.0.8.
- [Release notes](https://github.com/cloudfoundry/cf-uaa-lib/releases)
- [Changelog](https://github.com/cloudfoundry/cf-uaa-lib/blob/master/CHANGELOG.md)
- [Commits](cloudfoundry/cf-uaa-lib@v4.0.7...v4.0.8)

---
updated-dependencies:
- dependency-name: cf-uaa-lib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -59,7 +59,7 @@ gem 'fog-google', '~> 1.24.1'
 gem 'fog-local'
 gem 'fog-openstack'
 
-gem 'cf-uaa-lib', '~> 4.0.7'
+gem 'cf-uaa-lib', '~> 4.0.8'
 
 group :db do
   gem 'mysql2', '~> 0.5.6'

Gemfile.lock

@@ -110,10 +110,12 @@ GEM
     bit-struct (0.17)
     builder (3.3.0)
     byebug (11.1.3)
-    cf-uaa-lib (4.0.7)
+    cf-uaa-lib (4.0.8)
       addressable (~> 2.8, >= 2.8.0)
+      base64
       httpclient (~> 2.8, >= 2.8.2.4)
       json (~> 2.7)
+      mutex_m
     clockwork (3.0.2)
       activesupport
       tzinfo
@@ -325,6 +327,7 @@ GEM
     mustache (1.1.1)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
+    mutex_m (0.3.0)
     mysql2 (0.5.6)
     net-ssh (7.3.0)
     netaddr (2.0.6)
@@ -594,7 +597,7 @@ DEPENDENCIES
   allowy (>= 2.1.0)
   azure-storage-blob!
   byebug
-  cf-uaa-lib (~> 4.0.7)
+  cf-uaa-lib (~> 4.0.8)
   clockwork
   cloudfront-signer
   codeclimate-test-reporter (>= 1.0.8)