feat(firebase): update the api

#### firebase:v1beta1

The following keys were deleted:
- schemas.AddFirebaseRequest.properties.regionCode.type (Total Keys: 1)
- schemas.AddFirebaseRequest.properties.timeZone.type (Total Keys: 1)

docs/dyn/firebase_v1beta1.projects.html

@@ -147,8 +147,6 @@ <h3>Method Details</h3>
 
 { # All fields are required.
   &quot;locationId&quot;: &quot;A String&quot;, # Deprecated. Instead, to set a Project&#x27;s default GCP resource location, call [`FinalizeDefaultLocation`](../projects.defaultLocation/finalize) after you add Firebase resources to the GCP `Project`. The ID of the Project&#x27;s default GCP resource location. The location must be one of the available [GCP resource locations](https://firebase.google.com/docs/projects/locations).
-  &quot;regionCode&quot;: &quot;A String&quot;, # Deprecated. Instead, to link a Project with a Google Analytics account, call [`AddGoogleAnalytics`](../../v1beta1/projects/addGoogleAnalytics) after you add Firebase resources to the GCP `Project`. The region code (CLDR) that the account will use for Google Analytics data For example: US, GB, or DE In Java, use `com.google.i18n.identifiers.RegionCode`.
-  &quot;timeZone&quot;: &quot;A String&quot;, # Deprecated. Instead, to link a Project with a Google Analytics account, call [`AddGoogleAnalytics`](../../v1beta1/projects/addGoogleAnalytics) after you add Firebase resources to the GCP `Project`. The time zone that the account will use for Google Analytics data. For example: America/Los_Angeles or Africa/Abidjan
 }
 
   x__xgafv: string, V1 error format.

googleapiclient/discovery_cache/documents/firebase.v1beta1.json

@@ -1121,7 +1121,7 @@
       }
     }
   },
-  "revision": "20210524",
+  "revision": "20210525",
   "rootUrl": "https://firebase.googleapis.com/",
   "schemas": {
     "AddFirebaseRequest": {
@@ -1131,14 +1131,6 @@
         "locationId": {
           "description": "Deprecated. Instead, to set a Project's default GCP resource location, call [`FinalizeDefaultLocation`](../projects.defaultLocation/finalize) after you add Firebase resources to the GCP `Project`. The ID of the Project's default GCP resource location. The location must be one of the available [GCP resource locations](https://firebase.google.com/docs/projects/locations).",
           "type": "string"
-        },
-        "regionCode": {
-          "description": "Deprecated. Instead, to link a Project with a Google Analytics account, call [`AddGoogleAnalytics`](../../v1beta1/projects/addGoogleAnalytics) after you add Firebase resources to the GCP `Project`. The region code (CLDR) that the account will use for Google Analytics data For example: US, GB, or DE In Java, use `com.google.i18n.identifiers.RegionCode`.",
-          "type": "string"
-        },
-        "timeZone": {
-          "description": "Deprecated. Instead, to link a Project with a Google Analytics account, call [`AddGoogleAnalytics`](../../v1beta1/projects/addGoogleAnalytics) after you add Firebase resources to the GCP `Project`. The time zone that the account will use for Google Analytics data. For example: America/Los_Angeles or Africa/Abidjan",
-          "type": "string"
         }
       },
       "type": "object"