Use datetime.now instead of utznow

[tisnik]

Description

Use datetime.now instead of utznow

Python datetime objects can be naive or timezone-aware. While an aware
object represents a specific moment in time, a naive object does not
contain enough information to unambiguously locate itself relative to other
datetime objects. Since this can lead to errors, it is recommended to
always use timezone-aware objects.

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.78%. Comparing base (e1ae8a7) to head (981b85f).
Report is 33 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1983       +/-   ##
===========================================
- Coverage   96.95%   74.78%   -22.17%     
===========================================
  Files          69       68        -1     
  Lines        2886     2883        -3     
===========================================
- Hits         2798     2156      -642     
- Misses         88      727      +639     

Files with missing lines	Coverage Δ
ols/app/endpoints/feedback.py	100.00% <100.00%> (ø)

... and 35 files with indirect coverage changes

[openshift-ci]

@tisnik: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/unit	981b85f	link	true	/test unit

Full PR test history. Your PR dashboard.

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[onmete]

/lgtm