[7.16] Fix DockerTests.test022InstallPlugin assertion (#80741) (#80773)

* Fix DockerTests.test022InstallPlugin assertion (#80741)

Use order agnostic assertion when testing plugin installation.
https://gradle-enterprise.elastic.co/s/57wwszvhfzwnw/tests/:qa:os:destructiveDistroTest.default-dockerCloud/org.elasticsearch.packaging.test.DockerTests/test022InstallPlugin
@pugnascotia This will likely need to be included in your backport of
#80734
# Conflicts:
#	qa/os/src/test/java/org/elasticsearch/packaging/test/DockerTests.java

* Fix compiler error

qa/os/src/test/java/org/elasticsearch/packaging/test/DockerTests.java

@@ -19,6 +19,7 @@
 import org.elasticsearch.packaging.util.Shell.Result;
 import org.elasticsearch.packaging.util.docker.DockerRun;
 import org.elasticsearch.packaging.util.docker.MockServer;
+import org.hamcrest.Matcher;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -187,11 +188,11 @@ public void test022InstallPlugin() {
         final boolean isCloudImage = distribution().packaging == Packaging.DOCKER_CLOUD
             || distribution().packaging == Packaging.DOCKER_CLOUD_ESS;
 
-        final List<String> expectedPlugins = isCloudImage
-            ? asList("analysis-icu", "repository-azure", "repository-gcs", "repository-s3")
-            : asList("analysis-icu");
+        final Matcher<Iterable<?>> matcher = isCloudImage
+            ? containsInAnyOrder("repository-azure", "repository-gcs", "repository-s3", "analysis-icu")
+            : equalTo(asList("analysis-icu"));
 
-        assertThat("Expected installed plugins to be listed", listPlugins(), equalTo(expectedPlugins));
+        assertThat("Expected installed plugins to be listed", listPlugins(), matcher);
     }
 
     /**