allow empty chunks (third attempt)

related to 2445d1c, missed yet another test case

src/test/java/org/cryptomator/cryptolib/v2/FileContentCryptorImplTest.java

@@ -78,7 +78,7 @@ public class Encryption {
 
 		@DisplayName("encrypt chunk with invalid size")
 		@ParameterizedTest(name = "cleartext size: {0}")
-		@ValueSource(ints = {0, Constants.PAYLOAD_SIZE + 1})
+		@ValueSource(ints = {Constants.PAYLOAD_SIZE + 1})
 		public void testEncryptChunkOfInvalidSize(int size) {
 			ByteBuffer cleartext = ByteBuffer.allocate(size);