Add pwsh scoop package and run install.ps1 script

roles/powershell/tasks/main.yaml

@@ -38,3 +38,14 @@
     name: posh-git
     state: latest
     accept_license: true
+
+- name: install pwsh for powershell lsp
+  win_scoop:
+    name: pwsh
+    state: present
+
+- name: run install script
+  win_command:
+    cmd: 'powershell.exe {{powershell_config_dir}}/install.ps1'
+  register: powershell_install
+  changed_when: "'changed' in powershell_install.stdout"