bracket-push: update tests and version file (v1.2.0 -> v1.3.0) (#1468)

* Update bracket-push tests to match canonical data

* Update bracket-push version file

exercises/bracket-push/.meta/version

@@ -1 +1 @@
-1.2.0
+1.3.0

exercises/bracket-push/src/test/java/BracketCheckerTest.java

@@ -49,6 +49,13 @@ public class BracketCheckerTest {
 
     @Ignore("Remove to run test")
     @Test
+    public void testPartiallyPairedBrackets() {
+        BracketChecker bracketChecker = new BracketChecker("{[])");
+        assertFalse(bracketChecker.areBracketsMatchedAndNestedCorrectly());
+    }
+
+    @Ignore("Remove to run test")
+    @Test
     public void testSimpleNestedBrackets() {
         BracketChecker bracketChecker = new BracketChecker("{[]}");
         assertTrue(bracketChecker.areBracketsMatchedAndNestedCorrectly());