googleapis_auth: add some robustness to crypto algos #1232

Job	Run time
analyze_and_format; Dart 3.7.0; PKGS: _test, _test_package, discoveryapis_commons, discoveryapis_...	4m 41s
analyze_and_format; Dart dev; PKGS: _test, _test_package, discoveryapis_commons, discoveryapis_ge...	3m 45s
mono_repo self validate	37s
unittest; Dart 3.7.0; PKG: generated/googleapis; `dart test`	2m 49s
unittest; Dart dev; PKG: generated/googleapis_beta; `dart test`	31s
unittest; Dart 3.7.0; PKG: googleapis_auth; `dart test -p chrome --compiler dart2js,dart2wasm`	1m 39s
unittest; Dart 3.7.0; PKG: generated/googleapis_beta; `dart test`	52s
unittest; Dart 3.7.0; PKG: _test_package; `dart test`	32s
unittest; Dart dev; PKG: discoveryapis_commons; `dart test`	43s
unittest; Dart 3.7.0; PKG: discoveryapis_commons; `dart test`	46s
unittest; Dart dev; PKG: discoveryapis_generator; `dart test`	44s
unittest; Dart dev; PKG: generated/googleapis; `dart test`	2m 13s
unittest; Dart dev; PKG: _test_package; `dart test`	38s
unittest; Dart 3.7.0; PKG: discoveryapis_generator; `dart test`	47s
unittest; Dart dev; PKG: googleapis_auth; `dart test -p vm`	27s
unittest; Dart dev; PKG: googleapis_auth; `dart test -p chrome --compiler dart2js,dart2wasm`	1m 31s
unittest; Dart 3.7.0; PKG: googleapis_auth; `dart test -p vm`	28s
	23m 43s

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