chore: Fix spelling: the

Signed-off-by: Josh Soref <[email protected]>

Author: jsoref

src/google/adk/auth/auth_preprocessor.py

@@ -93,7 +93,7 @@ async def run_async(
       if not tools_to_resume:
         continue
 
-      # found the the system long running request euc function call
+      # found the system long running request euc function call
       # looking for original function call that requests euc
       for j in range(i - 1, -1, -1):
         event = events[j]