runs: flatten()

in src/cli.ts [99:107]


    runs: flatten(sarifLogs.map((log) => log.runs)),
};

verboseLog(`Formatting SARIF data into file contents`);
const jsonSpacing = argv.pretty ? 2 : undefined;
const outputFileContent = JSON.stringify(combinedLog, null, jsonSpacing);

verboseLog(`Writing output file ${argv['output-file']}`);
try {