Replace Strings util package with OpenSearch core Strings package

[naveentatikonda]

Description

Replace org.apache.logging.log4j.util.Strings with org.opensearch.core.common.Strings to fix failing CI. https://github.com/opensearch-project/geospatial/actions/runs/10207619595/job/28962936440?pr=671

> Task :forbiddenApisResources
Forbidden class/interface use: org.apache.logging.log4j.util.Strings [use org.opensearch.core.common.Strings instead.]

  in org.opensearch.geospatial.ip2geo.dao.GeoIpDataDao (GeoIpDataDao.java:233)
> Task :forbiddenApisMain FAILED
Scanned 126 class file(s) for forbidden API invocations (in 0.29s), 1 error(s).

> Task :generateTestEffectiveLombokConfig
FAILURE: Build failed with an exception.

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.
* What went wrong:

Execution failed for task ':forbiddenApisMain'.

Check List

• [ ] New functionality includes testing.
• [ ] New functionality has been documented.
• [ ] API changes companion pull request created.
• [x] Commits are signed per the DCO using --signoff.
• [ ] Public documentation issue/PR created.

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