denylist: deny reprovision tests on ppc64le/rawhide

They are failing right now. See
coreos/fedora-coreos-tracker#1489

Note that we can't really deny these tests without hitting a bug
(feature?) in that if all tests in a kola run are denylisted kola
will exit with an error. Therefore we add the reprovision label to
a random test (`ext.config.boot.grub2-install`) so we'll have at
least one test run.

kola-denylist.yaml

@@ -18,3 +18,14 @@
   snooze: 2023-05-23
   arches:
     - aarch64
+# This snooze won't fully work because we run our reprovision tests in
+# the pipeline in a separate step and there is an issue if all tests in
+# a kola run are denylisted: https://github.com/coreos/coreos-assembler/issues/3464
+# To workaround we've added the reprovision label to the `boot.grub2-install` test.
+- pattern: ext.config.root-reprovision.*
+  tracker: https://github.com/coreos/fedora-coreos-tracker/issues/1489
+  snooze: 2023-05-23
+  arches:
+    - ppc64le
+  streams:
+    - rawhide

tests/kola/boot/grub2-install

@@ -1,10 +1,14 @@
 #!/bin/bash
 ## kola:
-##   tags: "platform-independent"
+##   # add the reprovision tag here to temporarily to workaround
+##   # https://github.com/coreos/coreos-assembler/issues/3464. We can
+##   # remove the tag when https://github.com/coreos/fedora-coreos-tracker/issues/1489
+##   # is fixed.
+##   tags: "platform-independent reprovision"
 ##   # The test is not available for aarch64 and s390x,
 ##   # as aarch64 is UEFI only and s390x is not using grub2
 ##   architectures: "!aarch64 s390x"
-##   description: Verify that we install BIOS/PReP bootloader 
+##   description: Verify that we install BIOS/PReP bootloader
 ##     using grub2-install from the target system.
 
 # See