resetAuthRecheckTimer

Reset the timer indicating time since last auth issues were encountered.

💾 This method alters the persisted account state.

Call this if we have encountered the FxaRustAuthState.AuthIssues state as a result of a failure happening (i.e. not as a result of initialization simply loading that state from a previous failure). Most likely, this should not need to be called externally except in testing since the state machine's transition function should generally call the internal version of this function when necessary.