Improve preflight validation

[findmyname666]

SUMMARY

• Validate command should be run before terraform plan execution otherwise there is no point to do any validation.
• Validation error produces ANSI escape codes. Therefore we should use -no-color argument, see this issue for more info.

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/36814bf4cfbf47c18c7937101faad8de

✔️ build-ansible-collection SUCCESS in 8m 53s
❌ ansible-test-sanity-docker-devel FAILURE in 7m 28s (non-voting)
✔️ ansible-test-sanity-docker-milestone SUCCESS in 6m 42s (non-voting)
✔️ ansible-test-sanity-docker-stable-2.13 SUCCESS in 6m 33s
✔️ ansible-test-sanity-docker-stable-2.14 SUCCESS in 9m 32s
❌ ansible-test-units-cloud-terraform-python38 FAILURE in 4m 34s
✔️ ansible-test-integration-cloud-terraform SUCCESS in 7m 32s
❌ ansible-test-changelog FAILURE in 4m 36s
✔️ ansible-galaxy-importer SUCCESS in 3m 40s

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dd97797) 73.23% compared to head (9b740eb) 34.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #52       +/-   ##
===========================================
- Coverage   73.23%   34.00%   -39.23%     
===========================================
  Files          16        9        -7     
  Lines        1005      641      -364     
  Branches      181      159       -22     
===========================================
- Hits          736      218      -518     
- Misses        238      423      +185     
+ Partials       31        0       -31     

Flag	Coverage Δ
sanity	34.00% <ø> (ø)
units	?

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see 14 files with indirect coverage changes

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[softwarefactory-project-zuul]

Build succeeded.
https://ansible.softwarefactory-project.io/zuul/buildset/62c696f9478e4bee84fea548a690121b

✔️ ansible-galaxy-importer SUCCESS in 13m 26s
✔️ build-ansible-collection SUCCESS in 7m 46s