Update Release Notes for 0.5.21 (airtai#1764)

* Update Release Notes for 0.5.21

* chore: fix precommit

---------

Co-authored-by: Lancetnik <44573917+Lancetnik@users.noreply.github.com>
Co-authored-by: Nikita Pastukhov <diementros@yandex.ru>

.secrets.baseline

@@ -153,7 +153,7 @@
         "filename": "docs/docs/en/release.md",
         "hashed_secret": "35675e68f4b5af7b995d9205ad0fc43842f16450",
         "is_verified": false,
-        "line_number": 1633,
+        "line_number": 1647,
         "is_secret": false
       }
     ],
@@ -178,5 +178,5 @@
       }
     ]
   },
-  "generated_at": "2024-08-30T10:05:35Z"
+  "generated_at": "2024-09-05T13:48:33Z"
 }

docs/docs/en/release.md

@@ -12,6 +12,20 @@ hide:
 ---
 
 # Release Notes
+## 0.5.21
+
+### What's Changed
+
+* feat (#1168): allow include regular router to FastAPI integration by [@Lancetnik](https://github.com/Lancetnik){.external-link target="_blank"} in [#1747](https://github.com/airtai/faststream/pull/1747){.external-link target="_blank"}
+* In case if core-subscriber receive a JetStream message. by [@sheldygg](https://github.com/sheldygg){.external-link target="_blank"} in [#1751](https://github.com/airtai/faststream/pull/1751){.external-link target="_blank"}
+* feat: explicit final message commit status by [@Lancetnik](https://github.com/Lancetnik){.external-link target="_blank"} in [#1754](https://github.com/airtai/faststream/pull/1754){.external-link target="_blank"}
+* Fix/context get local default by [@Lancetnik](https://github.com/Lancetnik){.external-link target="_blank"} in [#1752](https://github.com/airtai/faststream/pull/1752){.external-link target="_blank"}
+* fix (#1759): correct ConfluentConfig with enums by [@Lancetnik](https://github.com/Lancetnik){.external-link target="_blank"} in [#1762](https://github.com/airtai/faststream/pull/1762){.external-link target="_blank"}
+* Adds SASLOAuthBearer flow to AIO Kafka's Faststream Security Parsing by [@sifex](https://github.com/sifex){.external-link target="_blank"} in [#1761](https://github.com/airtai/faststream/pull/1761){.external-link target="_blank"}
+* fix: FastAPI 0.112.3 compatibility by [@Lancetnik](https://github.com/Lancetnik){.external-link target="_blank"} in [#1763](https://github.com/airtai/faststream/pull/1763){.external-link target="_blank"}
+
+**Full Changelog**: [#0.5.20...0.5.21](https://github.com/airtai/faststream/compare/0.5.20...0.5.21){.external-link target="_blank"}
+
 ## 0.5.20
 
 ### What's Changed