/home/runner/work/electrs/electrs/./.github/actions/ci-rust-setup/action.yml (Line: 20, Col: 3): Unexpected value 'if'

GitHub.DistributedTask.ObjectTemplating.TemplateValidationException: The template is not valid. /home/runner/work/electrs/electrs/./.github/actions/ci-rust-setup/action.yml (Line: 20, Col: 3): Unexpected value 'if' 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)