fix: update old contracts to the new require syntax

dapps/tests/app/test/solidity_test.sol

@@ -9,6 +9,6 @@ contract MyTest {
   }
 
   function valueShouldBe1() public {
-    Assert.equal(1, i, "value is not correct");
+    require(1 == i, "value is not correct");
   }
 }

dapps/tests/contracts/test/ownable_test.sol

@@ -12,6 +12,6 @@ contract OwnableTests {
   }
 
   function shouldnotbezeroAddress() public {
-    Assert.equal(true, true, "owner is uninitialized");
+    require(true == true, "owner is uninitialized");
   }
 }