Failed to load /home/runner/work/k8s-kms-plugin/k8s-kms-plugin/./.github/actions/publish-release/action.yaml

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /home/runner/work/k8s-kms-plugin/k8s-kms-plugin/./.github/actions/publish-release/action.yaml (Line: 69, Col: 7): Required property is missing: shell,/home/runner/work/k8s-kms-plugin/k8s-kms-plugin/./.github/actions/publish-release/action.yaml (Line: 78, 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)

/home/runner/work/k8s-kms-plugin/k8s-kms-plugin/./.github/actions/publish-release/action.yaml (Line: 78, Col: 7): Required property is missing: shell