Add CLIENT SETINFO support to identify spark-redis connections in Redis server

[viktoriya-kutsarova]

This PR implements client library identification on Redis servers using the CLIENT SETINFO command. When connections are established, the connector now automatically registers itself with Redis, allowing server administrators to identify and monitor spark-redis client connections.

Key Changes

• Added RedisClientLibraryInfo object to encapsulate library name and version information extracted from the package manifest
• Created custom SparkRedisJedisFactory extending JedisFactory to send CLIENT SETINFO at connection creation time (not on every pool borrow)
• Uses fire-and-forget approach with debug logging for backward compatibility with Redis versions < 7.2
• Added comprehensive test suite (ConnectionPoolTest) to verify client info registration and connection pooling behavior

Client Info Format

• LIB-NAME: jedis(spark-redis_v{version}) - version extracted from JAR manifest or "unknown" in development
• LIB-VER: Jedis version (e.g., 3.9.0)

[tishun]

LGTM

[viktoriya-kutsarova]

The tests are failing because the server version in the CI pipeline is Redis 6.0.10, so setting the library name and version is expected to fail.