Requesting to move Cijo Thomas from Approver to Maintainer (#1355)

CONTRIBUTING.md

@@ -158,13 +158,13 @@ For GitHub groups see the [code owners](CODEOWNERS) file.
 
 ### Maintainers
 
+* [Cijo Thomas](https://github.com/cijothomas)
 * [Harold Dost](https://github.com/hdost)
 * [Julian Tescher](https://github.com/jtescher)
 * [Zhongyang Wu](https://github.com/TommyCpp)
 
 ### Approvers
 
-* [Cijo Thomas](https://github.com/cijothomas)
 * [Lalit Kumar Bhasin](https://github.com/lalitb)
 * [Shaun Cox](https://github.com/shaun-cox)