fix: 2.x extends bug

[kurten]

• 修复 controller 继承导致 router 覆盖 bug

[gitpod-io]

[codecov-commenter]

Codecov Report

Merging #498 into 2.x will decrease coverage by 0.08%.
The diff coverage is 94.54%.

@@            Coverage Diff             @@
##              2.x     #498      +/-   ##
==========================================
- Coverage   97.78%   97.69%   -0.09%     
==========================================
  Files          83       83              
  Lines        2705     2733      +28     
  Branches      199      202       +3     
==========================================
+ Hits         2645     2670      +25     
- Misses         60       63       +3     

Impacted Files	Coverage Δ
...es/midway-decorator/src/common/decoratorManager.ts	97.95% <94.44%> (-2.05%)	⬇️
...kages/midway-decorator/src/annotation/objectDef.ts	100.00% <100.00%> (ø)
packages/midway-web/src/index.ts	100.00% <0.00%> (ø)
packages/midway-core/src/index.ts	100.00% <0.00%> (ø)
packages/midway-mock/src/index.ts	100.00% <0.00%> (ø)
packages/midway-decorator/src/index.ts	100.00% <0.00%> (ø)

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