[Cosmos] Update version for release (Azure#24569)

* Update CHANGELOG.md

* Update sdk/cosmos/azure-cosmos/CHANGELOG.md

Co-authored-by: Kushagra Thapar <[email protected]>

* Update sdk/cosmos/azure-cosmos/CHANGELOG.md

Co-authored-by: Kushagra Thapar <[email protected]>

* Update sdk/cosmos/azure-cosmos/CHANGELOG.md

Co-authored-by: Kushagra Thapar <[email protected]>

* Version updates

Co-authored-by: Kushagra Thapar <[email protected]>

Author: simorenoh

sdk/cosmos/azure-cosmos/CHANGELOG.md

@@ -1,6 +1,8 @@
 ## Release History
 
-### 4.3.0b5 (Unreleased)
+### 4.3.0 (2022-05-23)
+#### Features Added
+- GA release of Async I/O APIs, including all changes from 4.3.0b1 to 4.3.0b4.
 
 #### Breaking Changes
 - Method signatures have been updated to use keyword arguments instead of positional arguments for most method options in the async client.

sdk/cosmos/azure-cosmos/azure/cosmos/_version.py

@@ -19,4 +19,4 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-VERSION = "4.3.0b5"
+VERSION = "4.3.0"

sdk/cosmos/azure-cosmos/setup.py

@@ -54,7 +54,7 @@
     maintainer_email="[email protected]",
     url="https://github.com/Azure/azure-sdk-for-python",
     classifiers=[
-        "Development Status :: 4 - Beta",
+        "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
         "Natural Language :: English",
         "Operating System :: OS Independent",