chore: release 0.4.3 (#199)

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Author: github-actions[bot]

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+### [0.4.3](https://www.github.com/GoogleCloudPlatform/cloud-sql-python-connector/compare/v0.4.2...v0.4.3) (2021-12-07)
+
+
+### Documentation
+
+* update README with connection pooling ([#196](https://www.github.com/GoogleCloudPlatform/cloud-sql-python-connector/issues/196)) ([af05cf5](https://www.github.com/GoogleCloudPlatform/cloud-sql-python-connector/commit/af05cf532566d5b8ef2e5930d05a8f4fb5979b48))
+
 ### [0.4.2](https://www.github.com/GoogleCloudPlatform/cloud-sql-python-connector/compare/v0.4.1...v0.4.2) (2021-11-02)
 
 

google/cloud/sql/connector/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.4.3-dev"
+__version__ = "0.4.3"