Auth Guard error when providing authpipe direct rather than as pipe generator (v9 new API not compat)

### Version info

**Angular:** 14

**Firebase:** 9

**AngularFire:** ^7.4.1

**Other (e.g. Ionic/Cordova, Node, browser, operating system):**
Node, Firefox/Chrome, Windows

### How to reproduce these conditions

I've created stackoverflow Q&A of the issue https://stackoverflow.com/questions/73799781/how-to-create-auth-guard-in-angular-fire-v9-with-new-api-not-compat
I believe this is a bug and not a documentation issue given the naming of `authGuardPipe`

When using guard below and navigating to a guarded feature as a user with email not verified (used emulators) this throws the error `TypeError: Unable to lift unknown Observable type` triggered by https://github.com/angular/angularfire/blame/master/src/auth-guard/auth-guard.ts#L21

```
const redirectUnauthorizedAndUnverifiedToAuth: AuthPipe = map((user: User | null) => {
// if not logged in, redirect to `auth`
// if logged in and email verified, allow redirect
// if logged in and email not verified, redirect to `auth/verify`
return !!user ? (user.emailVerified ? true : ['auth', 'verify']) : ['auth']
})
```
Replacing `redirectUnauthorizedAndUnverifiedToAuth` in `data : { authGuardPipe: redirectUnauthorizedAndUnverifiedToAuth }` with `authPipeGenerator` fixes

**Failing test unit, Stackblitz demonstrating the problem**

Can't produce stackblitz due to error https://github.com/stackblitz/core/issues/2039

**Steps to set up and reproduce**

Created basic auth & my-feature modules, v9 new API angular imports

```
...
import { initializeApp, provideFirebaseApp } from '@angular/fire/app';
import { provideAuth, getAuth, connectAuthEmulator } from '@angular/fire/auth';
import {
provideFirestore,
getFirestore,
connectFirestoreEmulator,
} from '@angular/fire/firestore';
import { AppRoutingModule } from './app-routing.module';

@NgModule({
imports: [
BrowserModule,
FormsModule,
AppRoutingModule,
provideFirebaseApp(() => initializeApp(firebase)), <--- provide firebase
provideAuth(() => {
const auth = getAuth();
// connectAuthEmulator(auth, 'http://localhost:9099')
return auth;
}),
provideFirestore(() => {
const firestore = getFirestore();
// connectFirestoreEmulator(firestore, 'localhost', 8080)
return firestore;
}),
],
declarations: [AppComponent, HelloComponent],
bootstrap: [AppComponent],
})
export class AppModule {}
```

app-routing.module.ts
```
import { NgModule } from '@angular/core';
import { User } from '@angular/fire/auth';
import { AuthGuard, AuthPipe, AuthPipeGenerator } from '@angular/fire/auth-guard';
import { Routes, RouterModule } from '@angular/router';
import { map } from 'rxjs';

const redirectUnauthorizedAndUnverifiedToAuth: AuthPipe = map((user: User | null) => {
// if not logged in, redirect to `auth`
// if logged in and email verified, allow redirect
// if logged in and email not verified, redirect to `auth/verify`
return !!user ? (user.emailVerified ? true : ['auth', 'verify']) : ['auth']
})
const authPipeGenerator: AuthPipeGenerator = () => redirectUnauthorizedAndUnverifiedToAuth

const routes: Routes = [
{
path: "auth",
loadChildren: () => import("./auth/auth.module").then(m => m.AuthModule)
},
{
path: "my-feature",
loadChildren: () => import("./my-feature/my-feature.module").then(m => m.MyFeatureModule),
canActivate: [AuthGuard],
data: { authGuardPipe: redirectUnauthorizedAndUnverifiedToAuth }
},
{ path: "", redirectTo: "auth", pathMatch: "full" },
{ path: "**", redirectTo: "auth" }
];

@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }
```

### Expected behavior

if you provide pipe this should work esp. given the name `authGuardPipe`
```
{
path: "my-feature",
loadChildren: () => import("./my-feature/my-feature.module").then(m => m.MyFeatureModule),
canActivate: [AuthGuard],
data: { authGuardPipe: redirectUnauthorizedAndUnverifiedToAuth }
},
```

### Actual behavior

Error `TypeError: Unable to lift unknown Observable type`

Beginne mit src/auth-guard/auth-guard.ts in der Zeile, die den Fehler auslöst, und reproduziere dann die Routenkonfiguration mit authGuardPipe und der in der Issue gezeigten AngularFire v9 API. Erledigt ist die Aufgabe, wenn ein direktes AuthPipe ohne „Unable to lift unknown Observable type“ funktioniert, während sich das bestehende Verhalten des Auth Guards weiterhin wie beschrieben verhält und nicht authentifizierte sowie nicht verifizierte Benutzer umleitet.

Vom Indexierungsmodell aus dem Issue-Text verfasst.