Update versions of libraries in poetry.

PATCH bump source-public-apis version to 0.2.15
Build source-public-apis docker image for platform(s) linux/amd64, linux/arm64
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Create or update pull request on Airbyte repository
Add changelog entry

Author: airbyteio

airbyte-integrations/connectors/source-public-apis/metadata.yaml

@@ -17,7 +17,7 @@ data:
   connectorSubtype: api
   connectorType: source
   definitionId: a4617b39-3c14-44cd-a2eb-6e720f269235
-  dockerImageTag: 0.2.14
+  dockerImageTag: 0.2.15
   dockerRepository: airbyte/source-public-apis
   documentationUrl: https://docs.airbyte.com/integrations/sources/public-apis
   githubIssueLabel: source-public-apis