ci: Combine windows features builds

Part of gstreamer/gstreamer-rs#417

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1166>

.gitlab-ci.yml

@@ -687,17 +687,7 @@ windows rust docker msrv:
     - 'docker'
     - 'windows'
     - '2022'
-  parallel:
-    matrix:
-      - FEATURES:
-        - "--features=v1_18,"
-        - "--features=v1_20,"
-        - "--features=v1_22,"
-        - "--no-default-features"
-        - ""
   script:
-    - echo $env:FEATURES
-
     # Skip -sys tests as they don't work
     # https://github.com/gtk-rs/gtk3-rs/issues/54
     #

ci/run_windows_tests.ps1

@@ -35,11 +35,20 @@
     'examples'
 )
 
+[string[]] $features_matrix = @(
+    "--no-default-features",
+    "",
+    "--features=v1_18,",
+    "--features=v1_20,",
+    "--features=v1_22,"
+)
+
+foreach($features in $features_matrix) {
     foreach($crate in $crates)
     {
         Write-Host "Building crate: $crate"
-    Write-Host "Features: $env:FEATURES"
+        Write-Host "Features: $features"
-    $env:LocalFeatures = $env:FEATURES
+        $env:LocalFeatures = $features
 
         # Don't append feature flags if the string is null/empty
         # Or when we want to build without default features
@@ -79,3 +88,4 @@ foreach($crate in $crates)
             Exit 1
         }
     }
+}