clusterresolver/e2e_test: Avoid making DNS requests

[arjan-bal]

The test is presently making a real DNS request for a non existing domain bad.ip.v4.address. This makes the test non-hermitic and could potentially be the cause of the test flaking. This change makes the test use a fake resolver to avoid making DNS requests.

Related issue: #7354

RELEASE NOTES: None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.86%. Comparing base (b45fc41) to head (ecbaa50).
Report is 20 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7561      +/-   ##
==========================================
- Coverage   82.07%   81.86%   -0.22%     
==========================================
  Files         360      361       +1     
  Lines       27533    27825     +292     
==========================================
+ Hits        22599    22779     +180     
- Misses       3759     3848      +89     
- Partials     1175     1198      +23     

Files with missing lines	Coverage Δ
resolver/manual/manual.go	100.00% <100.00%> (ø)

... and 50 files with indirect coverage changes