tests/kola: bump minDisk in autosave-xfs tests

The actual agcount on a 64G disk depends on the agsize baked in the
image, which in turn depends on how large the rootfs was calculated to
be (see `estimate-commit-disk-size` in cosa).

Since the starting rootfs size will differ on different arches (notably,
be larger than x86_64) and minor variations are greatly amplified, the
agcount may be lower than expected for a 64G disk and in turn the test
can fail. Even on x86_64, the rootfs size can change e.g. in CI builds
where we bake non-stripped binaries.

Bump the requested disk size to 100G in the test to make it more
foolproof.

Closes: coreos/fedora-coreos-tracker#1458

kola-denylist.yaml

@@ -34,15 +34,3 @@
   snooze: 2023-04-12
   arches:
     - aarch64
-- pattern: ext.config.root-reprovision.autosave-xfs
-  tracker: https://github.com/coreos/fedora-coreos-tracker/issues/1458
-  snooze: 2023-04-21
-  arches:
-    - aarch64
-    - ppc64le
-- pattern: ext.config.root-reprovision.luks.autosave-xfs
-  tracker: https://github.com/coreos/fedora-coreos-tracker/issues/1458
-  snooze: 2023-04-21
-  arches:
-    - aarch64
-    - ppc64le

tests/kola/root-reprovision/autosave-xfs/test.sh

@@ -3,7 +3,7 @@
 ##   # This test reprovisions the rootfs automatically.
 ##   tags: "platform-independent reprovision"
 ##   # Trigger automatic XFS reprovisioning
-##   minDisk: 64
+##   minDisk: 100
 ##   # Root reprovisioning requires at least 4GiB of memory.
 ##   minMemory: 4096
 ##   # This test includes a lot of disk I/O and needs a higher

tests/kola/root-reprovision/luks/autosave-xfs/test.sh

@@ -10,7 +10,7 @@
 ##   # timeout value than the default.
 ##   timeoutMin: 15
 ##   # Trigger automatic XFS reprovisioning
-##   minDisk: 64
+##   minDisk: 100
 
 set -xeuo pipefail