Migrate from armon/go-metrics to hashicorp/go-metrics

[makinje16]

Description

This PR is meant to address #22838. Specifically we are migrating from github.com/armon/go-metrics to github.com/hashicorp/go-metrics. This is intended to fix downstream dependency imports seen in the issue.

(This PR was done with the help of cursor and may need to be verified again)

Testing & Reproduction steps

Verification Tests Passed
✅ Build Success: go build ./... completes without errors
✅ Test Suite: go test -short ./agent/... runs successfully
✅ Binary Creation: Consul binary compiles and runs correctly
✅ Functionality: consul version and consul --help work as expected
✅ Issue Resolution: The original dependency conflict is now resolved - Consul can work with libraries using the new hashicorp/go-metrics path

Links

PR Checklist

• updated test coverage
• external facing docs updated
• appropriate backport labels added
• not a security concern

PCI review checklist

• I have documented a clear reason for, and description of, the change I am making.

• If applicable, I've documented a plan to revert these changes if they require more than reverting the pull request.

• If applicable, I've documented the impact of any changes to security controls.

  Examples of changes to security controls include using new access control methods, adding or removing logging pipelines, etc.

[hashicorp-cla-app]

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[hashicorp-cla-app]

Thank you for your submission! We require that all contributors sign our Contributor License Agreement ("CLA") before we can accept the contribution. Read and sign the agreement

Learn more about why HashiCorp requires a CLA and what the CLA includes

_{Have you signed the CLA already but the status is still pending? Recheck it.}