chore: Join multiple assertions is same chain

Author: en-milie

src/test/java/com/endava/cats/generator/format/impl/IPAddressRangeGeneratorTest.java

@@ -59,8 +59,7 @@ void shouldGenerateValidCIDR() {
             Schema<String> schema = new Schema<>();
             Object result = generator.generate(schema);
 
-            Assertions.assertThat(result).isNotNull();
-            Assertions.assertThat(result).isInstanceOf(String.class);
+            Assertions.assertThat(result).isNotNull().isInstanceOf(String.class);
             String cidr = (String) result;
             Assertions.assertThat(cidr).matches("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}/\\d{1,2}");
         }

src/test/java/com/endava/cats/util/external/MediaTypeTest.java

@@ -147,8 +147,7 @@ void shouldEqualsSameMediaType() {
         MediaType mt1 = MediaType.parse("application/json; charset=utf-8");
         MediaType mt2 = MediaType.parse("application/json; charset=utf-8");
 
-        assertThat(mt1).isEqualTo(mt2);
-        assertThat(mt1).hasSameHashCodeAs(mt2);
+        assertThat(mt1).isEqualTo(mt2).hasSameHashCodeAs(mt2);
     }
 
     @Test