ci(jenkins): install python3 for the given VERSION (#730)

Author: v1v

scripts/install-python.ps1

@@ -0,0 +1,9 @@
+# Abort with non zero exit code on errors
+$ErrorActionPreference = "Stop"
+
+Write-Host("Getting latest Python3 version for {0} ..." -f $env:VERSION)
+& choco list python3 --exact --by-id-only --all | Select-String -Pattern "python3 $env:VERSION"
+$Version = $(choco list python3 --exact --by-id-only --all) | Select-String -Pattern "python3 $env:VERSION" | %{$_.ToString().split(" ")[1]} | sort | Select-Object -Last 1
+
+Write-Host("Installing Python3 {0} ..." -f $Version)
+& choco install python3 --no-progress -y --version "$Version"