chore: Update CHANGELOG.md

Author: anubhav756

packages/toolbox-core/CHANGELOG.md

@@ -16,11 +16,6 @@
 * **toolbox-core:** Expose authorization token requirements on `ToolboxTool` ([#294](https://github.com/googleapis/mcp-toolbox-sdk-python/issues/294)) ([d7c3311](https://github.com/googleapis/mcp-toolbox-sdk-python/commit/d7c3311db18eb2785a4c5dc89233a91fc222d84d))
 
 
-### Miscellaneous Chores
-
-* **deps:** update python-nonmajor ([#284](https://github.com/googleapis/mcp-toolbox-sdk-python/issues/284)) ([492d35f](https://github.com/googleapis/mcp-toolbox-sdk-python/commit/492d35f61360494e60944f8f5939cc23dabca80f))
-
-
 ### Documentation
 
 * Add complete e2e working quickstart link across all quickstart sections ([#296](https://github.com/googleapis/mcp-toolbox-sdk-python/issues/296)) ([b839bc5](https://github.com/googleapis/mcp-toolbox-sdk-python/commit/b839bc5acd10142888739c2abaff215a32eb3e62))