SourceCodePro: Update to 2.042/1.062

[how]
Flatten directory structure.
Do not forget to check if that works correctly on release.

Fixes: #1437

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>

src/unpatched-fonts/SourceCodePro/README.md

@@ -5,4 +5,4 @@ in user interface (UI) environments.
 
 For more information have a look at the upstream website: https://github.com/adobe-fonts/source-code-pro
 
-Version: 2.038 / 1.058
+Version: 2.042 / 1.062