chore(deps): Remove EOL kotlin-stdlib-jdk8 1.9.25 dependency, superseded by kotlin-stdlib transitively via okhttp-jvm

[NivinCS]

Description

Removes the explicit kotlin-stdlib-jdk8 1.9.25 dependency declaration from the project. This artifact reached End-of-Life on May 21, 2024 and is no longer needed.

Motivation and Context

The kotlin-stdlib-jdk8 pin was originally added to resolve a version conflict between okhttp-jvm and okio-jvm when okio-jvm was at version 3.9.1, which required kotlin-stdlib 1.9.25. The comment in the pom reflected this intent:

<!-- pull up to the version used in okio-jvm to avoid conflict with okhttp-* -->

Since then, both okio-jvm and okhttp-jvm were upgraded to builds (3.16.4 and 5.3.2 respectively). Both of these versions now declare kotlin-stdlib 2.2.x (not kotlin-stdlib-jdk8) as their dependency. The explicit kotlin-stdlib-jdk8 1.9.25 pin was never updated and was actively downgrading the Kotlin stdlib to an EOL version.

Impact

Test Plan

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Release Notes

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== NO RELEASE NOTE ==

[imjalpreet]

Thanks for the fix, @NivinCS.

A few suggestions:

• Please attach the before/after dependency:tree output in the Test Plan section.
• I think we should have a release note for this change under the security/dependency section.
• PR title is too long. Let's update it to: chore(deps): Remove EOL kotlin-stdlib-jdk8 dependency and move the rest to the PR body.
• Is there a GitHub issue or a scanner finding (Dependabot/OpenSSF/CVE report) that motivated this? If yes, we could use that in the release note.

[imjalpreet]

nit:

Suggested change

	<!-- This is needed to keep Okio in the build and prevent conflicts with OkHttp and Kotlin dependencies. -->
	<!-- This is needed to keep Okio in the build and prevent conflicts with OkHttp dependencies. -->