patch 9.0.0847: CI: not totally clear what MS-Windows version is used

Problem:    CI: not totally clear what MS-Windows version is used.
Solution:   Show the Windows version. (Ken Takata, closes #11524)

.github/workflows/ci.yml

@@ -401,6 +401,9 @@ jobs:
         id: init
         shell: bash
         run: |
+          # Show Windows version
+          cmd /c ver
+
           git config --global core.autocrlf input
 
           if [ "${{ matrix.arch }}" = "x64" ]; then
@@ -422,9 +425,9 @@ jobs:
           echo "VCVARSALL=$(vswhere -products \* -latest -property installationPath)\\VC\\Auxiliary\\Build\\vcvarsall.bat" >> $GITHUB_ENV
           if [ "${{ matrix.features }}" != "TINY" ]; then
             if [ "${{ matrix.arch }}" = "x86" ]; then
-              choco install python2 --forcex86
+              choco install python2 --no-progress --forcex86
             else
-              choco install python2
+              choco install python2 --no-progress
             fi
           fi
           python3_dir=$(cat "/proc/$cygreg/HKEY_LOCAL_MACHINE/SOFTWARE/Python/PythonCore/${PYTHON3_VER_DOT}$pyreg/InstallPath/@")

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    847,
 /**/
     846,
 /**/