Update versions of libraries in poetry.

PATCH bump source-gainsight-px version to 0.1.12
Build source-gainsight-px docker image for platform(s) linux/amd64, linux/arm64
Get dependency updates
Create or update pull request on Airbyte repository
Add changelog entry

Author: alafanechere

airbyte-integrations/connectors/source-gainsight-px/metadata.yaml

@@ -16,7 +16,7 @@ data:
   connectorSubtype: api
   connectorType: source
   definitionId: 0da3b186-8879-4e94-8738-55b48762f1e8
-  dockerImageTag: 0.1.11
+  dockerImageTag: 0.1.12
   dockerRepository: airbyte/source-gainsight-px
   githubIssueLabel: source-gainsight-px
   icon: gainsight-px.svg