The testing links are not stable and are not guaranteed to exist.
Test: After re-generating the generated files, the link works now.
Change-Id: I36e73ef74571b3246f470280a75ae1098245eff5
From AOSP commit:
5971f6a5113b12b33d9454229bf27621853e1da7
-URL: https://www.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/testing/v@VER@/e2fsprogs.@FN@.tar.gz
+URL: https://www.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/v@VER@/e2fsprogs-@FN@.tar.gz
Version: @FN@
BugComponent: 95221