Update license URL

Author: sophiebremer

src/install.ts

@@ -6,7 +6,7 @@
 
   Licensed under the MIT License; you may not use this file except in
   compliance with the License. You may obtain a copy of the MIT License at
-  https://typescriptlibs.org/LICENSE.txt
+  https://typescriptlibs.eu/LICENSE.txt
 
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