Add --stacktrace to help triage CI flakiness

[picklebento]

There seem to be a recent spike of CI random failures such as
https://github.com/detekt/detekt/pull/3595/checks?check_run_id=2178012720

I am adding --stacktrace to all gradle commands in CI to yield more debugging information in the CI failure.
(Some gradle commands already come with --stacktrace)
Meanwhile, I am also removing --parallel since we already have it set to true in gradle.properties.

[codecov]

Codecov Report

Merging #3604 (5a0ca8e) into main (c16ecf6) will decrease coverage by 0.00%.
The diff coverage is 85.71%.

❗ Current head 5a0ca8e differs from pull request most recent head 35be194. Consider uploading reports for the commit 35be194 to get more accurate results

@@             Coverage Diff              @@
##               main    #3604      +/-   ##
============================================
- Coverage     77.53%   77.53%   -0.01%     
- Complexity     2835     2837       +2     
============================================
  Files           464      464              
  Lines          8779     8781       +2     
  Branches       1720     1720              
============================================
+ Hits           6807     6808       +1     
- Misses         1046     1047       +1     
  Partials        926      926              

Impacted Files	Coverage Δ	Complexity Δ
.../main/kotlin/io/gitlab/arturbosch/detekt/Detekt.kt	0.00% <ø> (ø)	0.00 <0.00> (ø)
...tlab/arturbosch/detekt/DetektCreateBaselineTask.kt	0.00% <ø> (ø)	0.00 <0.00> (ø)
...ab/arturbosch/detekt/extensions/DetektExtension.kt	0.00% <ø> (ø)	0.00 <0.00> (ø)
...otlin/io/gitlab/arturbosch/detekt/core/Analyzer.kt	80.26% <71.42%> (-0.82%)	9.00 <0.00> (ø)
...io/gitlab/arturbosch/detekt/core/rules/RuleSets.kt	100.00% <100.00%> (ø)	0.00 <0.00> (ø)
...bosch/detekt/rules/complexity/MethodOverloading.kt	91.66% <0.00%> (+0.23%)	5.00% <0.00%> (ø%)
...b/arturbosch/detekt/rules/style/UseCheckNotNull.kt	90.90% <0.00%> (+0.90%)	5.00% <0.00%> (+2.00%)

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[BraisGabin]

Do we need this? Don't we upload all our builds to gradle scan?

[picklebento]

I don't think we have build scan enabled in CI. Do you suggest adding --scan for gradle commands in CI?

[BraisGabin]

I though that we had it by default. But we don't:

detekt/build.gradle.kts

Lines 14 to 17 in 4a89a25

	allprojects {
	group = "io.gitlab.arturbosch.detekt"
	version = Versions.currentOrSnapshot()
	}

We just enabled the permission

[picklebento]

I think what you are suggesting is https://docs.gradle.com/enterprise/gradle-plugin/#publishing_every_build

gradleEnterprise {
    buildScan {
        publishOnFailure()
    }
}

However, I don't think we should have that block in the main repo - Be careful not to commit agreement to the terms of service into a project that may be built by others. We can conditionally apply the service agreement when running on CI. https://docs.gradle.com/enterprise/gradle-plugin/#connecting_to_scans_gradle_com

gradleEnterprise {
    buildScan {
        termsOfServiceUrl = "https://gradle.com/terms-of-service"
        termsOfServiceAgree = "yes"
    }
}

[picklebento]

In short, there is still value by adding --stacktrace itself, because gradle build scans may get purged later.