update changelog

Author: github-actions[bot]

docs/changelog/changelog.mdx

@@ -4,6 +4,12 @@ icon: "clock"
 iconType: "solid"
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+<Update label="v0.49.5" description="March 12, 2025">
+### [Fixes IndexError and file parse issue.](https://github.com/codegen-sh/codegen-sdk/releases/tag/v0.49.5)
+- Fix IndexError when message.content is empty
+- Resolve issue with disable_file_parse for create_file
+</Update>
+
 <Update label="v0.49.4" description="March 12, 2025">
 ### [Increased maximum token limit.](https://github.com/codegen-sh/codegen-sdk/releases/tag/v0.49.4)
 - Increased maximum token limit