Bump version to 0.2.0 (#739)

## Type of change
    - [ ] Bug fix
    - [ ] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
    - [ ] Build/deploy pipeline (DevOps)
    - [X] Other

    ## Objective
    Automated ruby-sdk version bump to 0.2.0

(cherry picked from commit 94b811f)

Author: bitwarden-devops-bot

languages/ruby/bitwarden_sdk_secrets/lib/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module BitwardenSDKSecrets
-  VERSION = '0.1.0'
+  VERSION = '0.2.0'
 end