[Condition Sets] Gracefully handle no telemetry

[jvigliotta]

Closes #7996

Describe your changes:

If no telemetry is returned, we return undefined, the rest of the code path handles that gracefully.

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• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this a notable change that will require a special callout in the release notes? For example, will this break compatibility with existing APIs or projects that consume these plugins?

Author Checklist

• Changes address original issue?
• Tests included and/or updated with changes?
• Has this been smoke tested?
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• Testing instructions included in associated issue OR is this a dependency/testcase change?

Reviewer Checklist

• Changes appear to address issue?
• Reviewer has tested changes by following the provided instructions?
• Changes appear not to be breaking changes?
• Appropriate automated tests included?
• Code style and in-line documentation are appropriate?

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 57.28%. Comparing base (1fde0d9) to head (0d675c1).

Files with missing lines	Patch %	Lines
.../plugins/condition/criterion/TelemetryCriterion.js	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7997      +/-   ##
==========================================
- Coverage   57.62%   57.28%   -0.34%     
==========================================
  Files         678      678              
  Lines       27426    27428       +2     
  Branches     2692     2692              
==========================================
- Hits        15803    15711      -92     
- Misses      11281    11374      +93     
- Partials      342      343       +1     

Flag	Coverage Δ
e2e-ci	62.81% <50.00%> (-0.01%)	⬇️
e2e-full	23.65% <0.00%> (-18.36%)	⬇️
unit	49.33% <50.00%> (-0.06%)	⬇️

Files with missing lines	Coverage Δ
.../plugins/condition/criterion/TelemetryCriterion.js	77.51% <50.00%> (-0.44%)	⬇️

... and 9 files with indirect coverage changes

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