[v0.0.7] Bump the version of clap in examples

[taku-y]

• atari
  • [x] dqn_atari.rs
  • [ ] ~dqn_atari_async.rs~
  • [x] dqn_atari_tch.rs
  • [ ] ~iqn_atari.rs~
• gym
  • [x] qdn_cartpole_tch.rs
  • [x] qdn_cartpole.rs
  • [x] sac_pendulum_tch.rs
  • [x] sac_pendulum.rs
  • [x] sac_lunarlander_cont_tch.rs
  • [x] sac_lunarlander_cont.rs
• gym-robotics
  • [x] sac_fetch_reach.rs
• mujoco
  • [ ] ~sac_ant_async.rs~
  • [x] sac_mujoco.rs
  • [x] sac_mujoco_tch.rs