fix dialyzer

.dialyzer-ignore

@@ -11,3 +11,5 @@ apps/explorer/lib/explorer/repo/prometheus_logger.ex:8: The call 'Elixir.System'
 apps/block_scout_web/lib/block_scout_web/views/layout_view.ex:175: The call 'Elixir.Poison.Parser':'parse!'(any(),#{'keys':='atoms!'}) will never return since the success typing is (binary() | maybe_improper_list(binary() | maybe_improper_list(any(),binary() | []) | byte(),binary() | []),[{atom(),_}]) -> 'false' | 'nil' | 'true' | binary() | ['false' | 'nil' | 'true' | binary() | [any()] | number() | map()] | number() | map() and the contract is (iodata(),'Elixir.Keyword':t()) -> t()
 apps/explorer/lib/explorer/smart_contract/publisher_worker.ex:6: The pattern 'false' can never match the type 'true'
 apps/explorer/lib/explorer/smart_contract/publisher_worker.ex:6: The test 5 == 'infinity' can never evaluate to 'true'
+lib/block_scout_web/router.ex:1
+lib/phoenix/router.ex:324