fix(integ-runner): disable-update-workflow default is 'false' instead…

… of false (#20073)

`disable-update-workflow` is a boolean, but the default value was a
string 'false'. Update the default to be a boolean `false` value.


----

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packages/@aws-cdk/integ-runner/lib/cli.ts

@@ -27,7 +27,7 @@ async function main() {
  .options('max-workers', { type: 'number', desc: 'The max number of workerpool workers to use when running integration tests in parallel', default: 16 })
  .options('exclude', { type: 'boolean', desc: 'All tests should be run, except for the list of tests provided', default: false })
  .options('from-file', { type: 'string', desc: 'Import tests to include or exclude from a file' })
- .option('disable-update-workflow', { type: 'boolean', default: 'false', desc: 'If this is "true" then the stack update workflow will be disabled' })
+ .option('disable-update-workflow', { type: 'boolean', default: false, desc: 'If this is "true" then the stack update workflow will be disabled' })
  .argv;
 
  const pool = workerpool.pool(path.join(__dirname, '../lib/workers/extract/index.js'), {
@@ -92,7 +92,7 @@ async function main() {
  clean: argv.clean,
  dryRun: argv['dry-run'],
  verbose: argv.verbose,
- updateWorkflow: !!argv['disable-update-workflow'],
+ updateWorkflow: !argv['disable-update-workflow'],
  });
 
  if (argv.clean === false) {