refactor(yaml): remove Any type

[timreichen]

• replaces Any type with any
• adds lint ignore rules
• replaces any with unknown in type assertion functions

Note: The point of this PR is to expose any as a suboptimal type, which should be replaced where possible.

[codecov]

Codecov Report

Attention: Patch coverage is 96.77419% with 2 lines in your changes missing coverage. Please review.

Project coverage is 96.33%. Comparing base (1f26aa5) to head (b3e0447).

Files	Patch %	Lines
yaml/_type/map.ts	0.00%	1 Missing ⚠️
yaml/_type/seq.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5306   +/-   ##
=======================================
  Coverage   96.33%   96.33%           
=======================================
  Files         458      458           
  Lines       37849    37867   +18     
  Branches     5619     5619           
=======================================
+ Hits        36460    36478   +18     
  Misses       1348     1348           
  Partials       41       41           

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[kt3k]

LGTM. Thanks!