Update CHANGELOG and VERSION for v0.6.0 release

Signed-off-by: Tushar Tathgur <[email protected]>

Author: Tushar Tathgur

CHANGELOG/CHANGELOG-0.6.md

@@ -0,0 +1,17 @@
+# Changelog 0.6
+
+ ## 0.5.0 - 2023-05-24
+
+ ### Added
+
+ - Added Theming and Coloring in Service Dependency Graph. ([#187](https://github.com/antrea-io/theia/pull/187), [@Dhruv-J])
+ - Group Pods by Pod Labels in Service Dependency Graph. ([#200](https://github.com/antrea-io/theia/pull/200), [@Dhruv-J])
+
+ ### Fixed
+
+ - Fixed critical vulnerabilities reported in Trivy Scan ([#269](https://github.com/antrea-io/theia/pull/269), [@tushartathgur])
+ - Fixed critical alerts reported in Dependabot ([#179](https://github.com/antrea-io/theia/pull/179), [@tushartathgur]), ([#180](https://github.com/antrea-io/theia/pull/180), [@tushartathgur])
+
+
+ [@Dhruv-J]: https://github.com/Dhruv-J
+ [@tushartathgur]: https://github.com/tushartathgur