Fixed the cache key issue in SecretManager service client creation

[ParthaI]

Integration test logs

Logs

Add passing integration test logs here

Example query results

Results

> select * from gcp_redis_instance
+---------+--------------+--------+---------------+-------------------------+---------------+-------------------+--------------------+------------+------+---------------------+---------------------------+-------+----------------+------>
| name    | display_name | labels | location_id   | alternative_location_id | redis_version | reserved_ip_range | secondary_ip_range | host       | port | current_location_id | create_time               | state | status_message | redis>
+---------+--------------+--------+---------------+-------------------------+---------------+-------------------+--------------------+------------+------+---------------------+---------------------------+-------+----------------+------>
| test-pc |              | <null> | us-central1-b |                         | REDIS_7_0     | 10.16.65.0/29     |                    | 10.16.65.3 | 6379 | us-central1-b       | 2024-07-30T17:12:21+05:30 | 2     |                | <null>
+---------+--------------+--------+---------------+-------------------------+---------------+-------------------+--------------------+------------+------+---------------------+---------------------------+-------+----------------+------