(chocolatey#84) Update testing Vagrantfile install pwsh (chocolatey#86)

Switch up the vagrant VM to use a LTS Ubuntu image as those are the only
ones supported for installing PowerShell from Microsoft. Updated the
provision script to install PowerShell so that sanity tests can be run
successfully.

testing-chocolatey/Vagrantfile

@@ -12,7 +12,7 @@ Vagrant.require_version ">= 1.6.0"
 Vagrant.configure("2") do |config|
 
   config.vm.define :choco_ansible_server do |server|
-    server.vm.box = "roboxes/ubuntu2010"
+    server.vm.box = "roboxes/ubuntu2204"
 
     server.vm.hostname = "ansible-server"
     server.vm.network :private_network, ip: "10.0.0.10"
@@ -28,9 +28,18 @@ Vagrant.configure("2") do |config|
 
     server.vm.provision "shell" do |sh|
       sh.inline = <<-SH
+        # Install python venv
         sudo apt-get update
         sudo apt-get install python3-venv -y
 
+        # Install PowerShell
+        sudo apt-get update
+        sudo apt-get install -y wget apt-transport-https software-properties-common
+        wget -q "https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/packages-microsoft-prod.deb"
+        sudo dpkg -i packages-microsoft-prod.deb
+        sudo apt-get update
+        sudo apt-get install -y powershell
+
         python3 -m venv ~/ansible
         source ~/ansible/bin/activate