Update metrics_tracker.py to include environment namespace

[abdullai-t]

Summary / Highlights

This pull request separates Cloud Watch metrics logs for development (dev), canary, and production (Prod) environments

Details (Give details about what this PR accomplishes, include any screenshots etc)

Testing Steps (Provide details on how your changes can be tested)

Requirements (place an x in each [ ])

• [x] I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• [x] I've tested my changes manually.
• [ ] I've added unit tests to my PR.

Transparency (Project board)

• [x] I've given my PR a meaningful title.
• [ ] I linked this PR to the relevant issue.
• [ ] I moved the linked issue from the "Sprint backlog" to "In progress" when I started this.
• [ ] I moved the linked issue to "QA Verification" now that it is ready to merge.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 57.17%. Comparing base (f9f3a0a) to head (f035060). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/_main_/utils/translation/metrics_tracker.py	33.33%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1180 +/- ## ========================================== - Coverage 57.18% 57.17% -0.01% ========================================== Files 486 486 Lines 35790 35792 +2 ========================================== - Hits 20467 20465 -2 - Misses 15323 15327 +4 ```

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