chore(main): release 0.3.4 (a2aproject#432)

🤖 I have created a release *beep* *boop*
---


##
[0.3.4](a2aproject/a2a-python@v0.3.3...v0.3.4)
(2025-09-02)


### Features

* Add `ServerCallContext` into task store operations
([a2aproject#443](a2aproject#443))
([e3e5c4b](a2aproject@e3e5c4b))
* Add extensions support to `TaskUpdater.add_artifact`
([a2aproject#436](a2aproject#436))
([598d8a1](a2aproject@598d8a1))


### Bug Fixes

* convert auth_required state in proto utils
([a2aproject#444](a2aproject#444))
([ac12f05](a2aproject@ac12f05))
* handle concurrent task completion during cancellation
([a2aproject#449](a2aproject#449))
([f4c9c18](a2aproject@f4c9c18))
* Remove logger error from init on `rest_adapter` and `jsonrpc_app`
([a2aproject#439](a2aproject#439))
([9193208](a2aproject@9193208))
* resolve streaming endpoint deadlock by pre-consuming request body
([a2aproject#426](a2aproject#426))
([4186731](a2aproject@4186731))
* Sync jsonrpc and rest implementation of authenticated agent card
([a2aproject#441](a2aproject#441))
([9da9ecc](a2aproject@9da9ecc))


### Performance Improvements

* Improve performance and code style for `proto_utils.py`
([a2aproject#452](a2aproject#452))
([1e4b574](a2aproject@1e4b574))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Author: a2a-bot

CHANGELOG.md

@@ -1,5 +1,27 @@
 # Changelog
 
+## [0.3.4](https://github.com/a2aproject/a2a-python/compare/v0.3.3...v0.3.4) (2025-09-02)
+
+
+### Features
+
+* Add `ServerCallContext` into task store operations ([#443](https://github.com/a2aproject/a2a-python/issues/443)) ([e3e5c4b](https://github.com/a2aproject/a2a-python/commit/e3e5c4b7dcb5106e943b9aeb8e761ed23cc166a2))
+* Add extensions support to `TaskUpdater.add_artifact` ([#436](https://github.com/a2aproject/a2a-python/issues/436)) ([598d8a1](https://github.com/a2aproject/a2a-python/commit/598d8a10e61be83bcb7bc9377365f7c42bc6af41))
+
+
+### Bug Fixes
+
+* convert auth_required state in proto utils ([#444](https://github.com/a2aproject/a2a-python/issues/444)) ([ac12f05](https://github.com/a2aproject/a2a-python/commit/ac12f0527d923800192c47dc1bd2e7eed262dfe6))
+* handle concurrent task completion during cancellation ([#449](https://github.com/a2aproject/a2a-python/issues/449)) ([f4c9c18](https://github.com/a2aproject/a2a-python/commit/f4c9c18cfef3ccab1ac7bb30cc7f8293cf3e3ef6))
+* Remove logger error from init on `rest_adapter` and `jsonrpc_app` ([#439](https://github.com/a2aproject/a2a-python/issues/439)) ([9193208](https://github.com/a2aproject/a2a-python/commit/9193208aabac2655a197732ff826e3c2d76f11b5))
+* resolve streaming endpoint deadlock by pre-consuming request body ([#426](https://github.com/a2aproject/a2a-python/issues/426)) ([4186731](https://github.com/a2aproject/a2a-python/commit/4186731df60f7adfcd25f19078d055aca26612a3))
+* Sync jsonrpc and rest implementation of authenticated agent card ([#441](https://github.com/a2aproject/a2a-python/issues/441)) ([9da9ecc](https://github.com/a2aproject/a2a-python/commit/9da9ecc96856a2474d75f986a1f45488c36f53e3))
+
+
+### Performance Improvements
+
+* Improve performance and code style for `proto_utils.py` ([#452](https://github.com/a2aproject/a2a-python/issues/452)) ([1e4b574](https://github.com/a2aproject/a2a-python/commit/1e4b57457386875b64362113356c615bc87315e3))
+
 ## [0.3.3](https://github.com/a2aproject/a2a-python/compare/v0.3.2...v0.3.3) (2025-08-22)