Update dependency simplecov-cobertura to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
simplecov-cobertura	'~>3.1' → '~>4.0'

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Release Notes

jessebs/simplecov-cobertura (simplecov-cobertura)

v4.0.0

Compare Source

What's Changed

• Support Simplecov 1.0.0 by @​jessebs in #​57
• Update copyright year to include 2026 by @​jessebs in #​62
• Prep for 4.0.0 release now that simplecov 1.0.0 is finalized by @​jessebs in #​63

Full Changelog: jessebs/simplecov-cobertura@v3.2.0...v4.0.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Gemfile.lock

Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...

Could not find compatible versions

Because simplecov-cobertura >= 4.0.0 depends on simplecov ~> 1.0
  and Gemfile depends on simplecov ~> 0.22,
  simplecov-cobertura >= 4.0.0 cannot be used.
So, because Gemfile depends on simplecov-cobertura ~> 4.0,
  version solving has failed.

[yegor256]

@rultor please, try to merge, since 1 checks have passed

[rultor]

@rultor please, try to merge, since 1 checks have passed

@renovate[bot] @yegor256 Can't merge it. Some CI checks failed. Apparently, the pull request is not ready to be merged since it has some problems. Please fix them first.