Fix linter warning in org.prism.ParsingOptions

The linter warning is the following:
```
/b/b/e/main/src/yarp/java/org/prism/ParsingOptions.java:99: warning: [lossy-conversions] implicit cast from int to byte in compound assignment is possibly lossy
            result |= 1 << value.ordinal();
                        ^
error: warnings found and -Werror specified
```

Author: andrykonchin

src/yarp/java/org/prism/ParsingOptions.java

@@ -96,7 +96,8 @@ private static void write(ByteArrayOutputStream output, byte[] bytes) {
     private static <T extends Enum<T>> byte serializeEnumSet(EnumSet<T> set) {
         byte result = 0;
         for (T value : set) {
-            result |= 1 << value.ordinal();
+            assert (1 << value.ordinal()) <= Byte.MAX_VALUE;
+            result |= (byte) (1 << value.ordinal());
         }
         return result;
     }