test: add suppression for PMD warning in InputStreamLineReaderTest

Author: durimkryeziu

area-rectangular-room/src/test/java/dev/delivercraft/rectangular/InputStreamLineReaderTest.java

@@ -35,6 +35,7 @@ void readLine_GivenInput_ShouldReturnInputLine() {
 
     @Test
     void readLine_GivenNullInputStream_ShouldThrowException() throws IOException {
+        @SuppressWarnings("PMD.CloseResource") // This is to simulate a closed stream for testing
         InputStream inputStream = InputStream.nullInputStream();
         inputStream.close();