chore(socket_path): Add socket path ENV for some experiment (#395)

Signed-off-by: Udit Gaurav <udit.gaurav@mayadata.io>

charts/generic/pod-memory-hog/experiment.yaml

@@ -69,6 +69,11 @@ spec:
       ## It is used in pumba lib only    
       - name: LIB_IMAGE
         value: 'gaiaadm/pumba'
+
+      # provide the socket file path
+      # it is used in pumba lib
+      - name: SOCKET_PATH
+        value: '/var/run/docker.sock'        
         
       - name: CHAOS_KILL_COMMAND
         value: "kill -9 $(ps afx | grep \"[dd] if /dev/zero\" | awk '{print $1}' | tr '\n' ' ')"