GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. pantos-io/e2e-testing/e2e6bb3839b030f42a5129cc89363bc1da0e487b/.github/actions/run-tests/action.yaml (Line: 108, 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)