[spiral/router] Update Route list command for customization route class

[S1lentAvenger]

Changing the use of an implementation to an interface to implement a custom route

Q	A
Bugfix?	❌
Breaks BC?	✔️
New feature?	❌

I have my own custom route class that inherits from RouteInterface just like the original class from the spiral/router package. However, the command to display routes does not work because it uses an implementation class rather than an interface in the types.
This PR is acknowledged to correct this.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3db2bb2) 89.51% compared to head (295620c) 89.50%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1070      +/-   ##
============================================
- Coverage     89.51%   89.50%   -0.01%     
  Complexity     6316     6316              
============================================
  Files           824      824              
  Lines         17799    17799              
============================================
- Hits          15932    15931       -1     
- Misses         1867     1868       +1     

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