Adapt test for MockServletContext version

See gh-35671

spring-test/src/test/java/org/springframework/mock/web/MockServletContextTests.java

@@ -106,9 +106,9 @@ class MockServletContextTests {
 		@Test
 		void servletVersion() {
 			assertThat(servletContext.getMajorVersion()).isEqualTo(6);
-			assertThat(servletContext.getMinorVersion()).isEqualTo(0);
+			assertThat(servletContext.getMinorVersion()).isEqualTo(1);
 			assertThat(servletContext.getEffectiveMajorVersion()).isEqualTo(6);
-			assertThat(servletContext.getEffectiveMinorVersion()).isEqualTo(0);
+			assertThat(servletContext.getEffectiveMinorVersion()).isEqualTo(1);
 
 			servletContext.setMajorVersion(4);
 			servletContext.setMinorVersion(0);