message: Fix Release32/Release64 typo in x64 installer script
diff: <Component Id='spirv_plugin' Win64="yes" Guid='15566608-0D77-42D2-9B6C-D43698C4C46D'>
  <File Id='spirvcross' Name='spirv-cross.exe' DiskId='1' Source='dist/Release64/plugins/spirv/spirv-cross.exe' KeyPath='yes' />
  <File Id='spirvdis' Name='spirv-dis.exe' DiskId='1' Source='dist/Release64/plugins/spirv/spirv-dis.exe' />
  - <File Id='spirvas' Name='spirv-as.exe' DiskId='1' Source='dist/Release32/plugins/spirv/spirv-as.exe' />
  - <File Id='glslang' Name='glslangValidator.exe' DiskId='1' Source='dist/Release32/plugins/spirv/glslangValidator.exe' />
  + <File Id='spirvas' Name='spirv-as.exe' DiskId='1' Source='dist/Release64/plugins/spirv/spirv-as.exe' />
  + <File Id='glslang' Name='glslangValidator.exe' DiskId='1' Source='dist/Release64/plugins/spirv/glslangValidator.exe' />
  </Component>
  </Directory>
  </Directory>
  