Typo fix in utils.dart #985

Job	Run time
mono_repo self validate	22s
analyzer_and_format; Dart 3.0.0; PKGS: _test_yaml, checked_yaml, example, json_annotation, json_s...	55s
analyzer_and_format; Dart dev; PKGS: _test_yaml, checked_yaml, example, json_annotation, json_ser...	1m 9s
unit_test; Dart 3.0.0; PKGS: _test_yaml, checked_yaml, example, json_serializable; `dart test`	2m 11s
unit_test; Dart 3.0.0; PKG: json_serializable; `dart test --run-skipped -t presubmit-only test/an...	4m 43s
unit_test; Dart 3.0.0; PKG: json_serializable; `dart test --run-skipped -t presubmit-only test/en...	1m 44s
unit_test; Dart dev; PKGS: _test_yaml, checked_yaml, example, json_serializable; `dart test`	2m 8s
unit_test; Dart 3.0.0; PKG: json_serializable; `dart test -p chrome`	2m 27s
unit_test; Dart dev; PKG: json_serializable; `dart test --run-skipped -t presubmit-only test/ensu...	1m 16s
unit_test; Dart dev; PKG: json_serializable; `dart test --run-skipped -t presubmit-only test/anno...	5m 0s
unit_test; Dart dev; PKG: json_serializable; `dart test -p chrome`	2m 12s
ensure_build; Dart 3.0.0; PKGS: _test_yaml, checked_yaml, example; `dart test --run-skipped -t pr...	2m 58s
ensure_build; Dart dev; PKGS: _test_yaml, checked_yaml, example; `dart test --run-skipped -t pres...	2m 22s
	29m 27s

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