GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /home/runner/work/perspective/perspective/./.github/actions/config/action.yaml (Line: 31, Col: 11): Required property is missing: shell,/home/runner/work/perspective/perspective/./.github/actions/config/action.yaml (Line: 35, Col: 11): Required property is missing: shell,/home/runner/work/perspective/perspective/./.github/actions/config/action.yaml (Line: 39, Col: 11): Required property is missing: shell,/home/runner/work/perspective/perspective/./.github/actions/config/action.yaml (Line: 62, Col: 11): Required property is missing: shell,/home/runner/work/perspective/perspective/./.github/actions/config/action.yaml (Line: 85, Col: 11): 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)