[minor] uncomment 2 scripting tests:

Tests were failing before, but now fixed, most likely by switching to
default target 1.8 and some changes in scripting IR support.
#KT-44471 fixed

libraries/scripting/jsr223-test/test/kotlin/script/experimental/jsr223/test/KotlinJsr223ScriptEngineIT.kt

@@ -321,10 +321,10 @@ obj
 
         scriptEngine.put("aValue", 3)
 
-//        val res1 = scriptEngine.eval(script1)
-//        Assert.assertEquals(1, res1)
-//        val res2 = scriptEngine.eval(script2)
-//        Assert.assertEquals(2, res2)
+        val res1 = scriptEngine.eval(script1)
+        Assert.assertEquals(1, res1)
+        val res2 = scriptEngine.eval(script2)
+        Assert.assertEquals(2, res2)
     }
 
     @Test