[Test] Fix IndexAliasesTests#testRemoveIndex (#122864) (#122894)

Exclude `.security*` aliases when calling Get Aliases API with the admin
superuser.

Resolves #122221

(cherry picked from commit ae7d196)

# Conflicts:
#	muted-tests.yml
#	x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/authz/IndexAliasesTests.java

Author: slobodanadamovic

muted-tests.yml

@@ -474,4 +474,3 @@ tests:
 - class: org.elasticsearch.xpack.test.rest.XPackRestIT
   method: test {p0=snapshot/10_basic/Create a source only snapshot and then restore it}
   issue: https://github.com/elastic/elasticsearch/issues/122755
-

x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/authz/IndexAliasesTests.java

@@ -802,7 +802,7 @@ public void testRemoveIndex() {
         assertAcked(client.admin().indices().prepareAliases().removeIndex("*").get());
         GetAliasesResponse getAliasesResponse = client.admin().indices().prepareGetAliases().setAliases("*").get();
         assertThat(getAliasesResponse.getAliases().size(), equalTo(0));
-        assertAliases(indicesAdmin().prepareGetAliases().setAliases("*"), "bogus_index_1", "bogus_alias_1", "bogus_alias_2");
+        assertAliases(indicesAdmin().prepareGetAliases().setAliases("*", "-.security*"), "bogus_index_1", "bogus_alias_1", "bogus_alias_2");
     }
 
     public void testAliasesForHiddenIndices() {