chore(deps-dev): bump ex_doc from 0.32.2 to 0.34.2 #10

Job	Run time
Build matrix	1s
Build and Cache deps	1m 17s
Credo	22s
Check spelling	19s
Code formatting checks	13s
Dialyzer static analysis (default)	2m 36s
ESLint	38s
Missing translation keys check	57s
Sobelow security analysis	41s
JS Tests	44s
Blockscout Web Tests (default)	5m 18s
EthereumJSONRPC Tests (default)	55s
Explorer Tests (default)	4m 33s
Indexer Tests (default)	2m 36s
	21m 10s

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