fix: support new config file options, expose aide_version

Cause: The aide role custom config test is using the old configuration options
on newer EL9 systems which use AIDE version 0.17 and later.

Consequence: The test gives errors like "ERROR: /etc/aide.conf:12: unexpected character"
and the test fails.

Fix: The role will now determine the AIDE version, set the new aide_version variable,
and use this variable to determine the old or new style configuration.

Result: The aide system role can process custom config on all supported AIDE
versions.

See https://github.com/aide/aide/blob/master/ChangeLog#L241

Signed-off-by: Rich Megginson <rmeggins@redhat.com>

tests/files/aide-custom.conf.j2

@@ -5,13 +5,17 @@
 @@define DBDIR /var/lib/aide
 @@define LOGDIR /var/log/aide
 
-{% if ansible_facts['os_family'] == 'RedHat' and
-  ansible_facts['distribution_major_version'] in ['8','9'] %}
-# The location of the database to be read.
-database=file:@@{DBDIR}/aide.db.gz
-{% else %}
+{% if aide_version is version('0.17.0', '>=') %}
 # The location of the database to be read.
 database_in=file:@@{DBDIR}/aide.db.gz
+# Default.
+log_level=warning
+report_level=changed_attributes
+{% else %}
+# The location of the database to be read.
+database=file:@@{DBDIR}/aide.db.gz
+# Default.
+verbose=5
 {% endif %}
 
 # The location of the database to be written.
@@ -22,16 +26,6 @@ database_out=file:@@{DBDIR}/aide.db.new.gz
 # Whether to gzip the output to database
 gzip_dbout=yes
 
-{% if ansible_facts['os_family'] == 'RedHat' and
-  ansible_facts['distribution_major_version'] in ['8','9'] %}
-# Default.
-verbose=5
-{% else %}
-# Default.
-log_level=warning
-report_level=changed_attributes
-{% endif %}
-
 report_url=file:@@{LOGDIR}/aide.log
 report_url=stdout
 #report_url=stderr