Update APIs, prepare for v15 (#689) #1199

Job	Run time
analyze_and_format; Dart 3.7.0; PKGS: _test, _test_package, discoveryapis_commons, discoveryapis_...	4m 22s
mono_repo self validate	35s
analyze_and_format; Dart dev; PKGS: _test, _test_package, discoveryapis_commons, discoveryapis_ge...	3m 43s
unittest; Dart 3.7.0; PKG: googleapis_auth; `dart test -p chrome --compiler dart2js,dart2wasm`	1m 42s
unittest; Dart dev; PKG: _test_package; `dart test`	35s
unittest; Dart 3.7.0; PKG: generated/googleapis; `dart test`	2m 37s
unittest; Dart 3.7.0; PKG: discoveryapis_commons; `dart test`	40s
unittest; Dart 3.7.0; PKG: discoveryapis_generator; `dart test`	45s
unittest; Dart 3.7.0; PKG: _test_package; `dart test`	38s
unittest; Dart 3.7.0; PKG: generated/googleapis_beta; `dart test`	49s
unittest; Dart dev; PKG: googleapis_auth; `dart test -p vm`	39s
unittest; Dart dev; PKG: generated/googleapis; `dart test`	2m 21s
unittest; Dart dev; PKG: discoveryapis_commons; `dart test`	38s
unittest; Dart 3.7.0; PKG: googleapis_auth; `dart test -p vm`	40s
unittest; Dart dev; PKG: googleapis_auth; `dart test -p chrome --compiler dart2js,dart2wasm`	1m 34s
unittest; Dart dev; PKG: discoveryapis_generator; `dart test`	40s
unittest; Dart dev; PKG: generated/googleapis_beta; `dart test`	43s
	23m 41s

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