update changelog

Author: github-actions[bot]

docs/changelog/changelog.mdx

@@ -4,6 +4,13 @@ icon: "clock"
 iconType: "solid"
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+<Update label="v0.43.3" description="March 03, 2025">
+### [Bug fixes and documentation link corrections.](https://github.com/codegen-sh/codegen-sdk/releases/tag/v0.43.3)
+- Fix Slack integration callback
+- Remove sandbox runner reset feature
+- Correct broken links in blog posts
+</Update>
+
 <Update label="v0.43.2" description="March 02, 2025">
 ### [Documentation updates and bug fix](https://github.com/codegen-sh/codegen-sdk/releases/tag/v0.43.2)
 - Updated API reference documentation