mingw - Revert changes; back to windows-2019 which doesn't run; at least we don't get a big red X.

Author: cboulay

.github/workflows/mingw_static.yml

@@ -1,14 +1,14 @@
 name: MinGW Windows static test
 
 on:
-  push:
-    branches: ['*']
-    paths:
-      - '**'
-      - '!docs/**'
-      - '!.github/**'
-      - '.github/workflows/mingw_static.yml'
-  pull_request:
+#  push:
+#    branches: ['*']
+#    paths:
+#      - '**'
+#      - '!docs/**'
+#      - '!.github/**'
+#      - '.github/workflows/mingw_static.yml'
+#  pull_request:
   workflow_dispatch:
 
 concurrency:
@@ -18,7 +18,7 @@ concurrency:
 jobs:
   build:
     name: MinGW batteries-included
-    runs-on: windows-latest
+    runs-on: windows-2019
 
     defaults:
       run:
@@ -30,8 +30,8 @@ jobs:
       with:
         release: false
         cache: true
-        install: >-
-            cmake
+#        install: >-
+#            cmake
     - name: Configure CMake
       run: |
            cmake --version
@@ -44,7 +44,7 @@ jobs:
                 -Dlslgitrevision=${{ github.sha }} \
                 -Dlslgitbranch=${{ github.ref }} \
                 -DLSL_OPTIMIZATIONS=OFF \
-                -G Ninja
+                -G 'MSYS Makefiles'
 
     - name: make
       run: cmake --build build --target install --config Release -j --verbose