Could not HEAD 'https://jitpack.io/com/github/requery/sqlite-android/3.39.2/sqlite-android-3.39.2.aar'. Received status code 521 from server:

[A-BEECHEY]

Why does my Appcenter build fail with

2022-12-23T10:29:58.9901120Z
2022-12-23T10:29:58.9906980Z FAILURE: Build failed with an exception.
2022-12-23T10:29:58.9907570Z
2022-12-23T10:29:58.9908170Z * What went wrong:
2022-12-23T10:29:58.9910120Z Execution failed for task ':background:database:generateStagingReleaseRFile'.
2022-12-23T10:29:58.9911870Z > Could not resolve all dependencies for configuration ':background:database:stagingReleaseRuntimeClasspath'.
2022-12-23T10:29:58.9917830Z > Could not determine artifacts for com.github.requery:sqlite-android:3.39.2
2022-12-23T10:29:58.9919440Z > Could not get resource 'https://jitpack.io/com/github/requery/sqlite-android/3.39.2/sqlite-android-3.39.2.aar'.
2022-12-23T10:29:58.9924870Z > Could not HEAD 'https://jitpack.io/com/github/requery/sqlite-android/3.39.2/sqlite-android-3.39.2.aar'. Received status code 521 from server:
2022-12-23T10:29:58.9925620Z

[firstred]

Jitpack was down for a very long time: jitpack/jitpack.io#5337

It should be solved now: https://twitter.com/jitpack/status/1606240240250679298