fix swiper auto

[WustLCQ]

描述：目前的swiper组件auto从true更改为false时，组件依然在自动播放
修复：在swiper组件auto的watch中，手动更改Swiper实例options中的auto
Please makes sure the items are checked before submitting your PR, thank you!

• Rebase before creating a PR to keep commit history clear.
• Only One commit
• No eslint errors

[codecov-io]

Codecov Report

Merging #2978 into v2 will increase coverage by 0.22%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##               v2    #2978      +/-   ##
==========================================
+ Coverage   19.47%   19.69%   +0.22%     
==========================================
  Files         226      226              
  Lines        5603     5605       +2     
  Branches      710      711       +1     
==========================================
+ Hits         1091     1104      +13     
+ Misses       4393     4364      -29     
- Partials      119      137      +18

Impacted Files	Coverage Δ
src/components/swiper/swiper.js	0.5% <0%> (-0.01%)	⬇️
src/components/swiper/swiper.vue	0% <0%> (ø)	⬆️
src/components/inline-calendar/util.js	69.41% <0%> (-9.42%)	⬇️
src/components/inline-calendar/index.vue	28.76% <0%> (-0.69%)	⬇️
src/components/blur/blur.js	66.66% <0%> (+2.15%)	⬆️
src/components/x-input/index.vue	13.69% <0%> (+10.11%)	⬆️
src/libs/base.js	45.45% <0%> (+27.27%)	⬆️

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