[ci] Give the LUCI Windows targets unique names (#500)

diff --git a/.ci.yaml b/.ci.yaml
index b5136da..da44197 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -29,7 +29,7 @@
       os: Windows
 
 targets:
-  - name: Windows win32-platform_tests master
+  - name: Windows win32-platform_tests master - packages
     bringup: true
     recipe: packages/packages
     timeout: 30
@@ -43,7 +43,7 @@
         ]
     scheduler: luci
 
-  - name: Windows win32-platform_tests stable
+  - name: Windows win32-platform_tests stable - packages
     bringup: true
     recipe: packages/packages
     timeout: 30