freeimage: substitute whitespace in URL with urlencoded equivalent (#…

…25934)

* freeimage: substitute whitespace in URL with '+' char

Closes #25929

* fix

---------

Co-authored-by: Luis Caro Campos <3535649+jcar87@users.noreply.github.com>

recipes/freeimage/all/conandata.yml

@@ -1,6 +1,6 @@
 sources:
   "3.18.0":
-    url: "http://downloads.sourceforge.net/project/freeimage/Source Distribution/3.18.0/FreeImage3180.zip"
+    url: "http://downloads.sourceforge.net/project/freeimage/Source%20Distribution/3.18.0/FreeImage3180.zip"
     sha256: "f41379682f9ada94ea7b34fe86bf9ee00935a3147be41b6569c9605a53e438fd"
 patches:
   "3.18.0":