Mark transitive dependencies optional

[cowwoc]

Describe the bug
client-java depends on io.prometheus:* and com.com.amazonaws:*. Both dependencies pull in needless transitive dependencies for users who don't use prometheus or aws.

Client Version
21.0.1

Expected behavior
Review all dependencies as mark as many as possible as optional. See https://maven.apache.org/guides/introduction/introduction-to-optional-and-excludes-dependencies.html for more information.

[brendandburns]

Happy to take PRs to improve/add the right optional dependencies for libraries related to auth.

Removing prometheus may be trickier, but again, open to reviewing PRs

Thanks

[k8s-triage-robot]

The Kubernetes project currently lacks enough contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue as fresh with /remove-lifecycle stale
• Close this issue with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue as fresh with /remove-lifecycle rotten
• Close this issue with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle rotten