[SPARK-45331][BUILD] Upgrade Scala to 2.13.12

[LuciferYang]

What changes were proposed in this pull request?

This pr aims to upgrade Scala from 2.13.11 to 2.13.12.

Additionally, this pr adds -Wconf:msg=legacy-binding:s to suppress similar compiler warnings as below:

[ERROR] /Users/yangjie01/SourceCode/git/spark-mine-13/core/src/main/scala/org/apache/spark/deploy/client/StandaloneAppClient.scala:171: reference to stop is ambiguous;
it is both defined in the enclosing class StandaloneAppClient and inherited in the enclosing class ClientEndpoint as method stop (defined in trait RpcEndpoint, inherited through parent trait ThreadSafeRpcEndpoint)
In Scala 2, symbols inherited from a superclass shadow symbols defined in an outer scope.
Such references are ambiguous in Scala 3. To continue using the inherited symbol, write `this.stop`.
Or use `-Wconf:msg=legacy-binding:s` to silence this warning. [quickfixable]
Applicable -Wconf / @nowarn filters for this fatal warning: msg=<part of the message>, cat=other, site=org.apache.spark.deploy.client.StandaloneAppClient.ClientEndpoint.receive

Why are the changes needed?

The new version bring some regression fixes:

• Deduplicate JavaDeprecatedAttr in ClassfileParser scala/scala#10422
• Avoid brittle flags encoding for Java enums scala/scala#10424

And a new feature: Quickfixes

For some errors and warnings, the compiler now suggests an edit that could fix the issue. Tooling such as IDEs can then offer the edits, or the compiler itself will make the change if run again with -quickfix.

• Implement quickfixes, aka actionable diagnostics (via CodeAction) scala/scala#10406
• Add -quickfix compiler option to apply quickfixes to source files scala/scala#10482
• Add quickfixes to some warnings and errors scala/scala#10484

The release notes as follows:

• https://github.com/scala/scala/releases/tag/v2.13.12

Does this PR introduce any user-facing change?

Yes, Scala version changed.

How was this patch tested?

Pass Github

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

NO

[dongjoon-hyun]

+1, LGTM. (Pending CIs)

[dongjoon-hyun]

Merged to master.

[dongjoon-hyun]

Thank you, @LuciferYang .