update tests 4 -> Integer.BYTES

Author: Scottmitch

servicetalk-http-api/src/test/java/io/servicetalk/http/api/BlockingStreamingToStreamingServiceTest.java

@@ -521,6 +521,6 @@ private static void assertTrailer(CharSequence expectedTrailer, CharSequence exp
     }
 
     private static int addFixedLengthFramingOverhead(int length, int chunks) {
-        return length == 0 ? 0 : length + 4 * chunks;
+        return length == 0 ? 0 : length + Integer.BYTES * chunks;
     }
 }

servicetalk-http-netty/src/test/java/io/servicetalk/http/netty/ContentLengthAndTrailersTest.java

@@ -405,7 +405,7 @@ private static CharSequence mergeValues(Iterable<? extends CharSequence> values)
     }
 
     static int addFixedLengthFramingOverhead(int length) {
-        return length == 0 ? 0 : length + 4;
+        return length == 0 ? 0 : length + Integer.BYTES;
     }
 
     private interface Transformer<T extends HttpMetaData> {