build: update to Fedora 31 and Bazel 2.2.0

Test Plan: CI

X-Origin-Diff: phab/D432
GitOrigin-RevId: 8b9173313e3d7970399e17305b61e3cfd0851a41
diff --git a/WORKSPACE b/WORKSPACE
index f825a90..ddc1af8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -22,7 +22,7 @@
 
 load("@bazel_skylib//lib:versions.bzl", "versions")
 
-versions.check(minimum_bazel_version = "2.0.0")
+versions.check(minimum_bazel_version = "2.2.0")
 
 # Go and Gazelle