Update versions of libraries in poetry.

PATCH bump source-bigcommerce version to 0.2.12
Build source-bigcommerce 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-bigcommerce/metadata.yaml

@@ -14,7 +14,7 @@ data:
   connectorSubtype: api
   connectorType: source
   definitionId: 59c5501b-9f95-411e-9269-7143c939adbd
-  dockerImageTag: 0.2.11
+  dockerImageTag: 0.2.12
   dockerRepository: airbyte/source-bigcommerce
   documentationUrl: https://docs.airbyte.com/integrations/sources/bigcommerce
   githubIssueLabel: source-bigcommerce