mdbx-ci: build both dll and static library by MinGW for testing.

Related to https://github.com/erthink/libmdbx/issues/196

.github/workflows/MinGW.yml

@@ -3,8 +3,8 @@ name: MinGW
 on:
   pull_request:
   push:
-    branches-ignore:
-    - coverity_scan
+    branches:
+    - mingw
     paths-ignore:
     - '.circleci/**'
     - '.github/actions/spelling/**'
@@ -23,25 +23,43 @@ on:
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [windows-latest]
+    runs-on: [windows-latest]
     steps:
     - uses: actions/checkout@v2
     - name: fetch tags
       run: git fetch --unshallow --tags --prune --force
-    - name: configure
-      run: cmake  -G "MinGW Makefiles" .
-    - name: build
-      run: cmake --build .
-#    - name: test
-#      shell: pwsh
-#      run: |
-#        & mdbx_test.exe --progress --console=no --pathname=test.db --dont-cleanup-after basic > test.log
-#        Get-Content test.log | Select-Object -last 42
-#        if ($LastExitCode -ne 0) {
-#            throw "Exec: $ErrorMessage"
-#        } else {
-#            & mdbx_chk.exe -nvv test.db | Tee-Object -file chk.log | Select-Object -last 42
-#        }
+    - name: update mingw64
+      # wanna version >= 10.2
+      run: choco upgrade mingw -y --no-progress
+    - name: configure-dll
+      run: mkdir build-dll && cd build-dll && cmake  -G "MinGW Makefiles" -DMDBX_BUILD_SHARED_LIBRARY:BOOL=ON -DMDBX_INSTALL_STATIC:BOOL=OFF ..
+    - name: build-dll
+      run: cd build-dll && cmake --build .
+    - name: test-dll
+      shell: pwsh
+      run: |
+        cd build-dll
+        ls
+        ./mdbx_test --progress --console=no --pathname=test.db --dont-cleanup-after basic > test.log
+        Get-Content test.log | Select-Object -last 42
+        if ($LastExitCode -ne 0) {
+            throw "Exec: $ErrorMessage"
+        } else {
+            ./mdbx_chk -nvv test.db | Tee-Object -file chk.log | Select-Object -last 42
+        }
+    - name: configure-static
+      run: mkdir build-static && cd build-static && cmake  -G "MinGW Makefiles" -DMDBX_BUILD_SHARED_LIBRARY:BOOL=OFF -DMDBX_INSTALL_STATIC:BOOL=ON ..
+    - name: build-static
+      run: cd build-static && cmake --build .
+    - name: test-static
+      shell: pwsh
+      run: |
+        cd build-static
+        ls
+        ./mdbx_test --progress --console=no --pathname=test.db --dont-cleanup-after basic > test.log
+        Get-Content test.log | Select-Object -last 42
+        if ($LastExitCode -ne 0) {
+            throw "Exec: $ErrorMessage"
+        } else {
+            ./mdbx_chk -nvv test.db | Tee-Object -file chk.log | Select-Object -last 42
+        }