support browser type choice for pbs (#4406)

skyvern/forge/sdk/schemas/persistent_browser_sessions.py

@@ -26,6 +26,11 @@ def is_final_status(status: str | None) -> bool:
     return status in FINAL_STATUSES
 
 
+class PersistentBrowserType(StrEnum):
+    MSEdge = "msedge"
+    Chrome = "chrome"
+
+
 class Extensions(StrEnum):
     AdBlocker = "ad-blocker"
     CaptchaSolver = "captcha-solver"
@@ -49,6 +54,7 @@ class PersistentBrowserSession(BaseModel):
     modified_at: datetime
     deleted_at: datetime | None = None
     extensions: list[Extensions] | None = None
+    browser_type: PersistentBrowserType | None = None
 
 
 class AddressablePersistentBrowserSession(PersistentBrowserSession):