fix timecop freeze by ignoring nanosecond precision for ci

[Tlazypanda]

Fixes #8401

fixed timecop freeze by ignoring nanosecond precision for ci since the test was failing on Travis because of nanoseconds drift. Check travisjeffery/timecop#97 (comment)

• PR is descriptively titled 📑 and links the original issue above 🔗
• tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR -- or run tests locally with rake test
• code is in uniquely-named feature branch and has no merge conflicts 📁
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[gitpod-io]

[codecov]

Codecov Report

Merging #8411 into main will increase coverage by 0.14%.
The diff coverage is 86.66%.

@@            Coverage Diff             @@
##             main    #8411      +/-   ##
==========================================
+ Coverage   81.87%   82.01%   +0.14%     
==========================================
  Files         101      101              
  Lines        5902     5900       -2     
==========================================
+ Hits         4832     4839       +7     
+ Misses       1070     1061       -9     

Impacted Files	Coverage Δ
app/models/node.rb	91.69% <86.66%> (+0.32%)	⬆️
app/api/srch/search.rb	70.06% <0.00%> (+3.82%)	⬆️
app/services/execute_search.rb	94.44% <0.00%> (+5.55%)	⬆️

[Tlazypanda]

Hey @jywarren @cesswairimu @VladimirMikulic @Uzay-G this might fix the problem not sure though 😅

[cesswairimu]

Thanks for this 🚀 . Lets merge this and keep the issue open and monitor this to the next week see how it does. Thanks