plugin_filter: check for type error (#46664)

* Parsing plugin filter may raise TypeError, gracefully handle this exception
and let user know about the syntax error in plugin filter file.

* Test for plugin_filtering

Fixes: #46658

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

test/integration/targets/plugin_filtering/no_blacklist_module.ini

@@ -0,0 +1,3 @@
+[defaults]
+retry_files_enabled = False
+plugin_filters_cfg = ./no_blacklist_module.yml

test/integration/targets/plugin_filtering/no_blacklist_module.yml

@@ -0,0 +1,3 @@
+---
+filter_version: 1.0
+module_blacklist:

test/integration/targets/plugin_filtering/runme.sh

@@ -21,6 +21,15 @@ if test $? != 0 ; then
 	exit 1
 fi
 
+#
+# Check that if no modules are blacklisted then Ansible should not through traceback
+#
+ANSIBLE_CONFIG=no_blacklist_module.ini ansible-playbook tempfile.yml  -i ../../inventory -vvv "$@"
+if test $? != 0 ; then
+	echo "### Failed to run tempfile with no modules blacklisted"
+	exit 1
+fi
+
 #
 # Check that with these modules filtered out, all of these modules fail to be found
 #