feat(logstore): support EnableLogStoreModify API

[Goclis]

Summary

• add EnableLogStoreModifyRequest with the dedicated {"enabled": true} request body
• expose request and convenience overloads through LogService and Client
• send PUT /logstores/{logstore}/modification and return response headers through VoidResponse
• add an offline unit test, usage sample, and functional regression test
• document that request acceptance is asynchronous and repeated enable calls are idempotent

Compatibility

• additive public API only; existing APIs and behavior are unchanged
• remains compatible with Java 8
• no dependency, artifact version, or release configuration changes

Testing

• mvn -B -Dtest=EnableLogStoreModifyTest test
• MAVEN_JAVA_HOME=/usr/lib/jvm/java-17-openjdk mvn -B package -DskipTests
• MAVEN_JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk mvn -B package -DskipTests
• EnableLogStoreModifyFunctionTest passed against an isolated staging SLS environment; it creates and deletes temporary project/logstore resources

No credentials, account identifiers, or real endpoints are included in this change.

[CLAassistant]

All committers have signed the CLA.

[crimson-gao]

bump version +0.0.1

[Goclis]

Updated the project version from 0.6.159 to 0.6.160 in commit 33cd85b.

Revalidated with:

• mvn -B -Dtest=EnableLogStoreModifyTest test
• JDK 17: mvn -B package -DskipTests
• JDK 8: mvn -B package -DskipTests

Thanks for the review.