[components] Merge https://github.com/mozilla-mobile/android-components/pull/7516
7516: Revert "Upgrade Glean to v31.2.1" r=jonalmeida a=grigoryk
This reverts commit
d524ed44d9e333fe8c8d890b9a2f9a9acb66ac6d.
See https://github.com/mozilla-mobile/android-components/issues/7511#issuecomment-
649721732
While these failures aren't technically blocking us, they may be masking other problems. E.g. we rely on ui tests as integration tests for the A-S stack.
Co-authored-by: Grisha Kruglov <gkruglov@mozilla.com>