[Transmission] Fix the differential transmission configure checks (backport #2682)

[mergify]

Addresses the comment: #2588 (comment)

---

This is an automatic backport of pull request #2682 done by Mergify.

[codecov]

Codecov Report

❌ Patch coverage is 53.12500% with 30 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.19%. Comparing base (d33e00b) to head (e17143e).
⚠️ Report is 1 commits behind head on jazzy.

Files with missing lines	Patch %	Lines
...ansmission_interface/differential_transmission.hpp	53.12%	12 Missing and 18 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            jazzy    #2687      +/-   ##
==========================================
- Coverage   89.30%   89.19%   -0.11%     
==========================================
  Files         151      151              
  Lines       17017    17064      +47     
  Branches     1417     1435      +18     
==========================================
+ Hits        15197    15221      +24     
- Misses       1274     1279       +5     
- Partials      546      564      +18     

Flag	Coverage Δ
unittests	89.19% <53.12%> (-0.11%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ansmission_interface/differential_transmission.hpp	73.33% <53.12%> (-6.43%)	⬇️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.