/Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 22, Col: 7): Required property is missing: shell

/Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 43, Col: 7): Required property is missing: shell

/Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 58, Col: 7): Required property is missing: shell

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 22, Col: 7): Required property is missing: shell,/Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 43, Col: 7): Required property is missing: shell,/Users/runner/work/customerio-ios/customerio-ios/./.github/actions/main-sample-app-build/action.yml (Line: 58, 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)