Add `amazon.com.be` to the filter list.

[fernvenue]

For https://github.com/AdguardTeam/AdGuardHome/issues/5090.

[codecov-commenter]

Codecov Report

Base: 45.51% // Head: 45.37% // Decreases project coverage by -0.13% :warning:

Coverage data is based on head (04d9b36) compared to base (a7d02fa). Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    AdguardTeam/AdGuardHome#5108      +/-   ##
==========================================
- Coverage   45.51%   45.37%   -0.14%     
==========================================
  Files         116      116              
  Lines       12482    12482              
==========================================
- Hits         5681     5664      -17     
- Misses       6201     6224      +23     
+ Partials      600      594       -6     

Impacted Files	Coverage Δ
internal/stats/stats.go	52.77% <0.00%> (-5.10%)	:arrow_down:
internal/stats/unit.go	68.38% <0.00%> (-3.88%)	:arrow_down:

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[ainar-g]

Thank you for the contribution, but please see the comment on top of servicelist.go as well as AdguardTeam/AdGuardHome#3972. You can open pretty much the same PR in the Hostlists Registry repo and add the rule to assets/services.json, and it should land in AdGuard Home with the next update.