patch: Update Changelog

Author: Simatwa

docs/CHANGELOG.md

@@ -449,4 +449,11 @@ For instance:
 
 **What's New?**
 
-- added: Provider [Groq](https://console.groq.com/)
+- added: Provider [Groq](https://console.groq.com/)
+
+
+## v0.5.7
+
+**What's New?**
+
+- fix: Provider `Opengpt`.

setup.py

@@ -40,7 +40,7 @@
 
 setup(
     name="python-tgpt",
-    version="0.5.6",
+    version="0.5.7",
     license="MIT",
     author="Smartwa",
     maintainer="Smartwa",