fix(mongo): Unset the default port 27017 to avoid MongoParseError

[wxh06]

5e23361 [FIX] mongo: Unset the default port 27017 in order to avoid MongoParseError while using mongodb+srv protocol:

MongoParseError: Ports not accepted with 'mongodb+srv' URIs

The default value set in initialization is enough:

koishi/packages/koishi/src/init.ts

Line 152 in 8368dc7

initial: '27017',

[codecov]

Codecov Report

Merging #312 (d7e1684) into develop (ce19057) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #312   +/-   ##
========================================
  Coverage    92.71%   92.71%           
========================================
  Files           58       58           
  Lines        11340    11340           
  Branches      2361     2361           
========================================
  Hits         10514    10514           
  Misses         826      826           

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[undefined-moe]

不是所有人都使用 koishi-init

请判断protocol是否为srv来决定是否补全该配置

[wxh06]

不是所有人都使用 koishi-init

请判断protocol是否为srv来决定是否补全该配置

端口留空在 URI 中会被省略，默认即为 27017，不必指定初值。

koishi/packages/plugin-mongo/src/database.ts

Line 74 in d7e1684

mongourl += `${host}${port ? `:${port}` : ''}/${authDatabase || name}`