Change output path for openblas build

Author: matthew-brett

.github/workflows/windows-arm.yml

@@ -15,6 +15,7 @@ env:
   BASH_PATH: "C:\\Program Files\\Git\\bin\\bash.exe"
   PLAT: arm64
   INTERFACE64: 0
+  BUILD_BITS: 32
 
 jobs:
   build:
@@ -59,7 +60,8 @@ jobs:
     - name: Pack
       run: |
         cd local
-        7z a ../builds/scipy_openblas32.zip -tzip scipy_openblas32
+        cp -r "scipy_openblas${$env:BUILD_BITS}" $env:BUILD_BITS
+        7z a ../builds/openblas32.zip -tzip $env:BUILD_BITS
 
     - name: Test 32-bit interface wheel
       run: |