Clean up entire /run/ipa/ccaches directory not just files

If there are any sub-directories in the ccaches directory
then cleaning it up will fail.

Instead remove the whole directory and allow systemd-tmpfiles
to re-create it.

https://pagure.io/freeipa/issue/8248

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

ipaplatform/base/paths.py

@@ -33,6 +33,7 @@ class BasePathNamespace:
     LS = "/bin/ls"
     SYSTEMCTL = "/bin/systemctl"
     SYSTEMD_DETECT_VIRT = "/usr/bin/systemd-detect-virt"
+    SYSTEMD_TMPFILES = "/usr/bin/systemd-tmpfiles"
     TAR = "/bin/tar"
     AUTOFS_LDAP_AUTH_CONF = "/etc/autofs_ldap_auth.conf"
     ETC_FEDORA_RELEASE = "/etc/fedora-release"