Update http4s-dom to 0.2.6

[keynmol-steward[bot]]

Updates org.http4s:http4s-dom from 0.2.5 to 0.2.6. GitHub Release Notes - Version Diff

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

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Adjust future updates

Add this to your `.scala-steward.conf` file to ignore future updates of this dependency: ``` updates.ignore = [ { groupId = "org.http4s", artifactId = "http4s-dom" } ] ``` Or, add this to slow down future updates of this dependency: ``` dependencyOverrides = [{ pullRequests = { frequency = "30 days" }, dependency = { groupId = "org.http4s", artifactId = "http4s-dom" } }] ```

labels: library-update, early-semver-minor, semver-spec-patch, version-scheme:early-semver, commit-count:1