Unmute PermissionsIT test and enable debug logging for it

This unmutes `testWhenUserLimitedByOnlyAliasOfIndexCanWriteToIndexWhichWasRolledoverByILMPolicy`
and enables DEBUG logging. The failure from this test case from a query
running rather than ILM itself, so more information is needed.

Relates to elastic#41440

x-pack/plugin/ilm/qa/with-security/src/test/java/org/elasticsearch/xpack/security/PermissionsIT.java

@@ -24,6 +24,7 @@
 import org.elasticsearch.common.xcontent.json.JsonXContent;
 import org.elasticsearch.common.xcontent.support.XContentMapValues;
 import org.elasticsearch.rest.RestStatus;
+import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.test.rest.ESRestTestCase;
 import org.elasticsearch.xpack.core.indexlifecycle.DeleteAction;
 import org.elasticsearch.xpack.core.indexlifecycle.LifecycleAction;
@@ -137,7 +138,7 @@ public void testCanViewExplainOnUnmanagedIndex() throws Exception {
      * Tests when the user is limited by alias of an index is able to write to index
      * which was rolled over by an ILM policy.
      */
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/41440")
+    @TestLogging("org.elasticsearch:DEBUG")
     public void testWhenUserLimitedByOnlyAliasOfIndexCanWriteToIndexWhichWasRolledoverByILMPolicy()
             throws IOException, InterruptedException {
         /*