chore(main): release 1.1.2 (a2aproject#1139)

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


##
[1.1.2](a2aproject/a2a-python@v1.1.1...v1.1.2)
(2026-07-20)


### Features

* **server:** add aclose() to drain ActiveTask background tasks
([a2aproject#1101](a2aproject#1101))
([a2aproject#1105](a2aproject#1105))
([9801f46](a2aproject@9801f46))


### Bug Fixes

* **agent_execution:** resolve ActiveTask 'destroyed but pending'
warning during teardown
([a2aproject#1122](a2aproject#1122))
([d19c4d2](a2aproject@d19c4d2))
* persist early producer failure as FAILED with originating message
([a2aproject#1106](a2aproject#1106))
([4e3d724](a2aproject@4e3d724))

---
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

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.1.1"
+  ".": "1.1.2"
 }

CHANGELOG.md

@@ -1,5 +1,18 @@
 # Changelog
 
+## [1.1.2](https://github.com/a2aproject/a2a-python/compare/v1.1.1...v1.1.2) (2026-07-20)
+
+
+### Features
+
+* **server:** add aclose() to drain ActiveTask background tasks ([#1101](https://github.com/a2aproject/a2a-python/issues/1101)) ([#1105](https://github.com/a2aproject/a2a-python/issues/1105)) ([9801f46](https://github.com/a2aproject/a2a-python/commit/9801f4637fc0689b461dd3db00968bec496cd7ac))
+
+
+### Bug Fixes
+
+* **agent_execution:** resolve ActiveTask 'destroyed but pending' warning during teardown ([#1122](https://github.com/a2aproject/a2a-python/issues/1122)) ([d19c4d2](https://github.com/a2aproject/a2a-python/commit/d19c4d260e375d52175eec4bbd9018edb3eb270b))
+* persist early producer failure as FAILED with originating message ([#1106](https://github.com/a2aproject/a2a-python/issues/1106)) ([4e3d724](https://github.com/a2aproject/a2a-python/commit/4e3d7249e2316859fe8e9b85fd688d6d4525d690))
+
 ## [1.1.1](https://github.com/a2aproject/a2a-python/compare/v1.1.0...v1.1.1) (2026-07-15)