Internal Version 2020.11.26.1

Release v2020.11.26.1 (#818)

* misc: Increase ulimit to 65535 for test env (#756)
* test: Fix frontend CI (#752)
* ui: fix dayjs i18n (#755)
* ui: handle error globally (#757)
* statement, slow_query: support all fields in list page (#749)
* ui: memorize expand/collapse full text in detail pages (#775)
* ui: break loop dependencies (#771)
* ui: fix browser compatibility check (#776)
* ui: Refine store location, add zoom and pan (#772)
* ui: show disk usage information for statement and slow query (#777)
* ui: use qps instead of ops (#786)
* statement: support export (#778)
*: Fix slow query and start_ts not working in some cases (#793)
* ui: fix errors doesn't display (#794)
* ui: fix the error message doesn't show correct (#799)
* slow_queries: support export (#792)
* ui: add MySqlFormatter to customize the sql formatter (#805)
*: fix query statement detail error cause by round (#806)
* ui: copy original content instead of formatted content for CopyLink (#802)
* add min height of topology canvas (#804)
* metrics: Support customize Prometheus address (#808)
* clusterinfo: Refine (#815)
* ui: Open statement and slow log in new tab (#816)
* ui: add more time field for slow query detail page (#810)
* slowlog: Improve descriptions (#817)
* build: add action to check release-version is changed for release branch
* Release v2020.11.26.1