chore: fix sudt backend cors & support mysql8

[PainterPuppets]

• add cors for sudt backend
• support mysql8 ref: ER_NOT_SUPPORTED_AUTH_MODE after upgrade typeorm/typeorm#2093 (comment)

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (feature/sudt-backend@ef557cb). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@                   Coverage Diff                   @@
##             feature/sudt-backend     #567   +/-   ##
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  Coverage                        ?   61.58%           
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  Files                           ?       94           
  Lines                           ?     3176           
  Branches                        ?      722           
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  Hits                            ?     1956           
  Misses                          ?     1097           
  Partials                        ?      123           

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