Update pristine.yml

.github/workflows/pristine.yml

@@ -17,8 +17,13 @@ jobs:
           git --version || echo "::warning::could not determine installed version of git"
       - name: "Install GH CLI"
         run: |
-          apt-get update
-          apt-get install gh -y
+          (type -p wget >/dev/null || (sudo apt update && sudo apt-get install wget -y))
+          sudo mkdir -p -m 755 /etc/apt/keyrings
+          wget -qO- https://cli.github.com/packages/githubcli-archive-keyring.gpg | sudo tee /etc/apt/keyrings/githubcli-archive-keyring.gpg > /dev/null
+          sudo chmod go+r /etc/apt/keyrings/githubcli-archive-keyring.gpg
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | sudo tee /etc/apt/sources.list.d/github-cli.list > /dev/null
+          sudo apt update
+          sudo apt install gh -y        
           apt show gh
       - name: "Print git --version"
         run: |