[Releng] Migrate PDE.setup to use github URIs

eclipse-pde/eclipse.pde#4

setups/org.eclipse.projects.setup

@@ -1115,7 +1115,7 @@
   <project href="https://raw.githubusercontent.com/eclipse/packagedrone/master/setups/org.eclipse.packagedrone.oomph/PackageDrone.setup#/"/>
   <project href="http://git.eclipse.org/c/papyrus/org.eclipse.papyrus.git/plain/releng/org.eclipse.papyrus.oomph/setups/papyrus.setup#/"/>
   <project href="https://raw.githubusercontent.com/eclipse-passage/passage/master/releng/org.eclipse.passage.releng/passage.setup#/"/>
-  <project href="https://git.eclipse.org/c/pde/eclipse.pde.ui.git/plain/releng/org.eclipse.pde.ui.setup/PDE.setup#/"/>
+  <project href="https://raw.githubusercontent.com/eclipse-pde/eclipse.pde.ui/master/releng/org.eclipse.pde.ui.setup/PDE.setup#/"/>
   <project href="interim/Platform.setup#/"/>
   <project href="http://git.eclipse.org/c/mmt/org.eclipse.qvtd.git/plain/releng/org.eclipse.qvtd.oomph/setups/qvtd.setup#/"/>
   <project href="http://git.eclipse.org/c/mmt/org.eclipse.qvto.git/plain/releng/org.eclipse.qvto.oomph/setups/qvto.setup#/"/>