fix: make sure a compatible version of OpenVPN is used

Author: clivewalkden

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
             - name: Install OpenVPN
               run: |
                   sudo apt-get update
-                  sudo apt-get install -y openvpn openvpn-systemd-resolved
+                  sudo apt-get install -y openvpn=2.5.9 openvpn-systemd-resolved
         
             - name: Test OpenVPN
               uses: "./"
@@ -29,7 +29,7 @@ jobs:
 
             - name: Wait for VPN to connect
               if: success()
-              run: until ping -c 1 -W 5 172.16.0.61; sleep 2; done
+              run: until ping -c 1 -W 5 172.16.0.61; do sleep 2; done
 
             - name: Upload VPN logs
               if: always()