feat: add trivial check to detect if current user has the permission …

…to run docker

docker_vuln_runner/vuln.py

@@ -163,6 +163,21 @@ def vuln_init():
 
 
 def check_docker():
+    # Check if the current user has the permissions to run docker
+    # Just run a 'ps' command and check if it throws
+    try:
+        docker_cli.ps()
+    except:
+        err("""
+        An error occurred while running docker
+        Check if the current user is in the 'docker' group
+            
+        To add it run the following:
+        ```
+        sudo usermod -aG docker $USER    
+        ```    
+
+        """)
     if not docker_cli.compose.is_installed():
         err("""
         Please install 'docker compose' (version 2)