Do not set final fields with direct accessors in UtAssembleModel

[EgorkaKulikov]

Suppose we have a class with a public final field whose content can be modified (e.g., an array):

public class PublicFinalFieldExample {
  public final int[] data = {1, 2};
 
  public boolean foo(int x) {
     return x == data[0];
  }
}

Expected behavior:
UtAssembleModel is not created, final field is set via reflection.

Actual behavior:
The generated tests for foo contain the direct assignment to the data field instead of assignment to the array elements or changing the field value using reflection:

@Test
--
@DisplayName("foo: return data[0] == x : False -> return data[0] == x")
public void testFoo_0OfDataNotEqualsX() throws Throwable {
  PublicFinalArrayExample publicFinalArrayExample = new PublicFinalArrayExample();
  int[] intArray = new int[1];
  intArray[0] = 1;
  publicFinalArrayExample.data = intArray; // Error: this line does not compile
 
  boolean actual = publicFinalArrayExample.foo(-224);
 
  assertFalse(actual);
}

Testing instructions:
AssembleModelGeneratorTests should be enlarged with one more test for objects with final fields.
Other tests should still pass.