Don't use deprecated Float constructors.

Change-Id: I841703412d611b552b4cd9cf49b8730708f6f623
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.images/+/190610
Tested-by: Alexander Kurtakov <akurtako@redhat.com>
Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/org.eclipse.images.renderer/src/main/java/org/eclipse/images/renderer/RenderMojo.java b/org.eclipse.images.renderer/src/main/java/org/eclipse/images/renderer/RenderMojo.java
index d83c9e9..f1cc944 100644
--- a/org.eclipse.images.renderer/src/main/java/org/eclipse/images/renderer/RenderMojo.java
+++ b/org.eclipse.images.renderer/src/main/java/org/eclipse/images/renderer/RenderMojo.java
@@ -454,8 +454,8 @@
 			}
 		}
 
-		transcoder.addTranscodingHint(PNGTranscoder.KEY_WIDTH, new Float(width));
-		transcoder.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, new Float(height));
+		transcoder.addTranscodingHint(PNGTranscoder.KEY_WIDTH, Float.valueOf(width));
+		transcoder.addTranscodingHint(PNGTranscoder.KEY_HEIGHT, Float.valueOf(height));
 
 		transcoder.setErrorHandler(new ErrorHandler() {
 			@Override