Update installer.wixproj

Correct the item delimiter for argument passing.

Author: compnerd

platforms/Windows/installer.wixproj

@@ -15,7 +15,8 @@
     <ProductVersion Condition=" '$(ProductVersion)' == '' ">0.0.0</ProductVersion>
     <ProductVersion>$(ProductVersion)</ProductVersion>
 
-    <RequiredChain Condition=" '$(RequiredChain)' == '' ">icu.msi;runtime.msi;toolchain.msi;devtools.msi;sdk.msi</RequiredChain>
+    <!-- The list must be %3B (;) separated so that it is passed along properly as `;` normally delimit options -->
+    <RequiredChain Condition=" '$(RequiredChain)' == '' ">icu.msi%3Bruntime.msi%3Btoolchain.msi%3Bdevtools.msi%3Bsdk.msi</RequiredChain>
     <RequiredChain>$(RequiredChain)</RequiredChain>
 
     <OptionalChain>$(OptionalChain)</OptionalChain>