chore(main): release 0.2.8 (#183)

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


##
[0.2.8](v0.2.7...v0.2.8)
(2025-06-12)


### Features

* Add HTTP Headers to ServerCallContext for Improved Handler Access
([#182](#182))
([d5e5f5f](d5e5f5f))
* Update A2A types from specification 🤖
([#191](#191))
([174230b](174230b))


### Bug Fixes

* Add `protobuf==6.31.1` to dependencies
([#189](#189))
([ae1c31c](ae1c31c)),
closes [#185](#185)

---
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CHANGELOG.md

@@ -1,5 +1,18 @@
 # Changelog
 
+## [0.2.8](https://github.com/google-a2a/a2a-python/compare/v0.2.7...v0.2.8) (2025-06-12)
+
+
+### Features
+
+* Add HTTP Headers to ServerCallContext for Improved Handler Access ([#182](https://github.com/google-a2a/a2a-python/issues/182)) ([d5e5f5f](https://github.com/google-a2a/a2a-python/commit/d5e5f5f7e7a3cab7de13cff545a874fc58d85e46))
+* Update A2A types from specification 🤖 ([#191](https://github.com/google-a2a/a2a-python/issues/191)) ([174230b](https://github.com/google-a2a/a2a-python/commit/174230bf6dfb6bf287d233a101b98cc4c79cad19))
+
+
+### Bug Fixes
+
+* Add `protobuf==6.31.1` to dependencies ([#189](https://github.com/google-a2a/a2a-python/issues/189)) ([ae1c31c](https://github.com/google-a2a/a2a-python/commit/ae1c31c1da47f6965c02e0564dc7d3791dd03e2c)), closes [#185](https://github.com/google-a2a/a2a-python/issues/185)
+
 ## [0.2.7](https://github.com/google-a2a/a2a-python/compare/v0.2.6...v0.2.7) (2025-06-11)