Not building MinSizeRel on windows runners in github actions.

Author: arobenko

.github/workflows/actions_build.yml

@@ -530,7 +530,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        type: [Debug, Release, MinSizeRel]
+        type: [Debug, Release]
         arch: [Win32, x64]
         cpp: [11, 14, 17]
         qt_ver: [5, 6]
@@ -597,7 +597,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        type: [Debug, Release, MinSizeRel]
+        type: [Debug, Release]
         arch: [Win32, x64]
         cpp: [11, 14, 17, 20]