/home/admin/actions-runner/_work/dragonwell8/dragonwell8/./.github/actions/build-serverless-adapter/action.yml (Line: 40, Col: 7): Required property is missing: shell

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /home/admin/actions-runner/_work/dragonwell8/dragonwell8/./.github/actions/build-serverless-adapter/action.yml (Line: 40, Col: 7): Required property is missing: shell at GitHub.DistributedTask.ObjectTemplating.TemplateValidationErrors.Check() at GitHub.Runner.Worker.ActionManifestManager.ConvertRuns(IExecutionContext executionContext, TemplateContext templateContext, TemplateToken inputsToken, String fileRelativePath, MappingToken outputs) at GitHub.Runner.Worker.ActionManifestManager.Load(IExecutionContext executionContext, String manifestFile)

Failed to load /home/admin/actions-runner/_work/dragonwell8/dragonwell8/./.github/actions/build-serverless-adapter/action.yml

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/