Replace khttp

With this MR, we replace khttp with the built-in Java HTTP client. This means, we also do no longer depend on the jcenter repository.

Fix #287 (closed).

changed milestone to %0.10.0

assigned to @she

added 3 commits

• a11e3a49 - 1 commit from branch main
• 0fd4721b - Replace khttp in MetricFetcher
• 0b9a6c3b - Merge branch 'main' into replace-khttp

Compare with previous version

marked this merge request as ready

enabled an automatic merge when the pipeline for 0b9a6c3b succeeds

changed the description

merged

mentioned in commit 51d3c2bb

mentioned in issue #288 (closed)