[TEST] Fix test bug in ChainingInputStreamTests (elastic#72595)

This fixes a test bug in ChainingInputStreamTests.testResetForDoubleMarkAnywhere.
The component input stream does not advance, and mockito rightfully intercepts two
invocations instead of a single one.

x-pack/plugin/repository-encrypted/src/test/java/org/elasticsearch/repositories/encrypted/ChainingInputStreamTests.java

@@ -961,6 +961,7 @@ InputStream nextComponent(InputStream currentComponentIn) throws IOException {
             verify(lastCurrentIn).close();
         }
         verify(currentIn).reset();
+        final InputStream firstResetStream = currentIn;
         // assert the "nextComponet" arg is the current component
         nextComponentArg.set(currentIn);
         // possibly skips over several components
@@ -991,7 +992,11 @@ InputStream nextComponent(InputStream currentComponentIn) throws IOException {
         if (lastCurrentIn != currentIn) {
             verify(lastCurrentIn).close();
         }
-        verify(currentIn).reset();
+        if (currentIn != firstResetStream) {
+            verify(currentIn).reset();
+        } else {
+            verify(currentIn, times(2)).reset();
+        }
     }
 
     public void testMarkAfterResetNoMock() throws Exception {