Disable Geth tests in CI

[vbaranov]

Motivation

In order to decrease the number of tests without losing the efficiency of CI, it is suggested to remove the tests, that we start on Geth node. We have the same tests, starting on Parity node. If a new feature will be introduced specifically to Geth node, those tests suggested to be run locally.

Changelog

Tests, that starts on Geth node were commented in CI

Checklist for your PR

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so if necessary
• If I added/changed/removed ENV var, I should update the list of env vars in https://github.com/poanetwork/blockscout/blob/master/docs/env-variables.md to reflect changes in the table here https://poanetwork.github.io/blockscout/#/env-variables?id=blockscout-env-variables. I've set master in the Version column.
• If I add new indices into DB, I checked, that they don't redundant with PGHero or other tools

[coveralls]

Pull Request Test Coverage Report for Build 2d5c2f46-83a1-4763-bba5-15376acb0938

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 71 unchanged lines in 16 files lost coverage.
• Overall coverage decreased (-0.9%) to 77.612%

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Files with Coverage Reduction	New Missed Lines	%
apps/block_scout_web/lib/block_scout_web/controllers/chain/market_history_chart_controller.ex	1	78.57%
apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth/calls.ex	1	0.0%
apps/ethereum_jsonrpc/test/support/ethereum_jsonrpc/case/geth/http_websocket.ex	1	0.0%
apps/ethereum_jsonrpc/test/support/ethereum_jsonrpc/case/geth/mox.ex	1	0.0%
apps/indexer/lib/indexer/block/fetcher.ex	1	87.18%
apps/indexer/lib/indexer/fetcher/internal_transaction.ex	1	59.68%
apps/indexer/lib/indexer/transform/addresses.ex	1	79.17%
apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex	2	82.5%
apps/explorer/lib/explorer/chain/import/runner/internal_transactions.ex	2	92.86%
apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/fetched_code.ex	4	0.0%

Totals
Change from base Build 6cf9bb8b-94f3-407e-8948-662b95642391:	-0.9%
Covered Lines:	5200
Relevant Lines:	6700

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💛 - Coveralls