[FLINK-36465] Bump okhttp from 3.14.9 to 4.12.0

[r-sidd]

What is the purpose of the change

[FLINK-36465] Bump okhttp from 3.14.9 to 4.12.0

Brief change log

Bump okhttp from 3.14.9 to 4.12.0. This will remediate vulnerabilities in underlying dependencies and brings in a lot of bugfixes and features.

Package details:

https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp/4.12.0

https://mvnrepository.com/artifact/com.squareup.okhttp3/logging-interceptor/4.12.0

Release notes:

https://square.github.io/okhttp/changelogs/upgrading_to_okhttp_4

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): yes
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: don't know
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? not applicable

[flinkbot]

CI report:

• 0e4aa16b10321b3b6c2e991dce484895a28be99a Azure: FAILURE

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot run azure re-run the last Azure build

[github-actions[bot]]

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