[Auth] Add exported const map for error codes

[sam-gc]

Fixes #5178

[changeset-bot]

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Latest commit: 754a80f

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[github-actions]

Changeset File Check ✅

• No modified packages are missing from the changeset file.
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[google-oss-bot]

Binary Size Report

Affected SDKs

No changes between base commit (6ef484a) and head commit (646c6f4).

Test Logs

• Base (6ef484a0): https://github.com/firebase/firebase-js-sdk/actions/runs/1054145845
• Head (646c6f4b): https://github.com/firebase/firebase-js-sdk/actions/runs/1054342714

[google-oss-bot]

Size Analysis Report

Affected Products

• @firebase/auth-exp

  • AuthErrorCodes

    Size Table

    Type	Base (6ef484a)	Head (646c6f4)	Diff
    size	?	34.1 kB	? (?)
    size-with-ext-deps	?	45.9 kB	? (?)

    Dependency Table

    Type	Base (6ef484a)	Head (646c6f4)	Diff
    functions	?	47 dependencies _assert _castAuth _createError _emulatorUrl _fail _getBrowserName _getClientVersion _getCurrentScheme _getFinalTarget _getInstance _getUserLanguage _initializeAuthInstance _isAndroid _isBlackBerry _isChromeIOS _isFirefox _isHttpOrHttps _isIEMobile _isOnline _isSafari _isWebOS _logError _logoutIfInvalidated _makeTaggedError _parseToken _performApiRequest _performFetchWithErrorHandling _persistenceKeyName _prodErrorMap _reloadWithoutSaving _tokenExpiresIn assertStringOrUndefined createErrorInternal debugAssert debugFail deleteAccount extractProviderData getAccountInfo getIdTokenResult getVersionForPlatform isUserInvalidated mergeProviderData registerAuth reload requestStsToken secondsStringToMilliseconds utcTimestampToDateString	?
    classes	?	12 dependencies AuthImpl AuthInterop Delay FetchProvider InMemoryPersistence NetworkTimeout PersistenceUserManager ProactiveRefresh StsTokenManager Subscription UserImpl UserMetadata	?
    variables	?	AuthErrorCodes DEFAULT_API_TIMEOUT_MS SERVER_ERROR_MAP _DEFAULT_AUTH_ERROR_FACTORY inMemoryPersistence instanceCache logClient name version	?
    enums	?		?

    External Dependency Table

    Module	Base (6ef484a)	Head (646c6f4)	Diff
    @firebase/app-exp	?	SDK_VERSION _registerComponent registerVersion	?
    @firebase/util	?	ErrorFactory FirebaseError base64Decode createSubscribe getModularInstance getUA isBrowserExtension isMobileCordova isReactNative querystring	?
    @firebase/logger	?	LogLevel Logger	?
    tslib	?	__rest	?
    @firebase/component	?	Component	?

Test Logs

• Base (6ef484a): https://github.com/firebase/firebase-js-sdk/actions/runs/1054145845
• Head (646c6f4): https://github.com/firebase/firebase-js-sdk/actions/runs/1054342714

[egilmorez]

LG with a nit, thanks!