[SPARK-53783] Use log4j2 instead of log4j

[dongjoon-hyun]

What changes were proposed in this pull request?

This PR aims to use log4j2 instead of log4j by

• Use log4j-slf4j2-impl instead of log4j-slf4j-impl
• Remove log4j-1.2-api

Why are the changes needed?

Apache Spark main repository has been using log4j-slf4j2-impl instead of log4j-slf4j-impl in order to use Log4J2.

• [SPARK-40511][BUILD][CORE] Upgrade slf4j to 2.0.3 spark#37844

Apache Spark K8s Operator repository seems to use log4j-slf4j2-impl mistakenly at the initial implementation.

• [SPARK-47950] Add Java API Module for Spark Operator #8

implementation("org.apache.logging.log4j:log4j-slf4j-impl:$log4jVersion")

Does this PR introduce any user-facing change?

No behavior change.

How was this patch tested?

Pass the CIs.

Was this patch authored or co-authored using generative AI tooling?

No.

[dongjoon-hyun]

Let me merge this to unblock other dependency fix PRs.

[dongjoon-hyun]

cc @jiangzho