Use choco upgrade, not choco install (#3684)

* Use `choco upgrade`, not `choco install` and add `--version` for Python

* Update install_windows.rst

* actually, nah

docs/install_windows.rst

@@ -26,15 +26,15 @@ Then run each of the following commands:
 
     Set-ExecutionPolicy Bypass -Scope Process -Force
     iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
-    choco install git --params "/GitOnlyOnPath /WindowsTerminal" -y
-    choco install visualstudio2019-workload-vctools -y
-    choco install python3 -y
+    choco upgrade git --params "/GitOnlyOnPath /WindowsTerminal" -y
+    choco upgrade visualstudio2019-workload-vctools -y
+    choco upgrade python3 -y
 
 For Audio support, you should also run the following command before exiting:
 
 .. code-block:: none
 
-    choco install adoptopenjdk11jre -y
+    choco upgrade adoptopenjdk11jre -y
 
 
 From here, exit the prompt then continue onto `creating-venv-windows`.