feat: add fetchrow method to postgres

ayon_server/lib/postgres.py

@@ -151,6 +151,14 @@ async def fetch(cls, query: str, *args: Any, timeout: float = 60):
         async with cls.acquire() as connection:
             return await connection.fetch(query, *args, timeout=timeout)
 
+    @classmethod
+    async def fetchrow(cls, query: str, *args: Any, timeout: float = 60):
+        """Run a query and return the first row as a Record."""
+        if cls.pool is None:
+            raise ConnectionError
+        async with cls.acquire() as connection:
+            return await connection.fetchrow(query, *args, timeout=timeout)
+
     @classmethod
     async def iterate(
         cls,