feat: add OpenAI gpt-oss models to Amazon Bedrock dropdown #13442

Job	Run time
knip	41s
compile	2m 7s
check-translations	36s
check-openrouter-api-key	4s
platform-unit-test (windows-latest)	6m 9s
platform-unit-test (ubuntu-latest)	3m 57s
integration-test	7m 11s
notify-slack-on-failure	0s
	20m 45s

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