Add telemetry for .env files

[kimadeline]

For #10780

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR).
• Title summarizes what is changing.
• Has a news entry file (remember to thank yourself!).
• Appropriate comments and documentation strings in the code.
• Has sufficient logging.
• Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated.
• Test plan is updated as appropriate.
• package-lock.json has been regenerated by running npm install (if dependencies have changed).
• The wiki is updated with any design decisions/details.

[codecov-io]

Codecov Report

Merging #10833 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #10833   +/-   ##
=======================================
  Coverage   60.73%   60.73%           
=======================================
  Files         582      582           
  Lines       31716    31716           
  Branches     4516     4516           
=======================================
  Hits        19263    19263           
  Misses      11466    11466           
  Partials      987      987           

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[ericsnowcurrently]

I have just a few comments.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication

[ericsnowcurrently]

LGTM