[Epoch Sync] Make config disable epoch sync request handling.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.43%. Comparing base (606fdd2) to head (0ced2bc). Report is 9 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #12057 +/- ## ======================================= Coverage 71.43% 71.43% ======================================= Files 814 814 Lines 164736 164736 Branches 164736 164736 ======================================= + Hits 117682 117687 +5 + Misses 41894 41880 -14 - Partials 5160 5169 +9 ``` | [Flag](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | Coverage Δ | | |---|---|---| | [backward-compatibility](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.17% <ø> (ø)` | | | [db-migration](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.17% <ø> (ø)` | | | [genesis-check](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.27% <ø> (ø)` | | | [integration-tests](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `38.54% <ø> (-0.01%)` | :arrow_down: | | [linux](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `71.21% <ø> (-0.02%)` | :arrow_down: | | [linux-nightly](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `71.02% <ø> (-0.01%)` | :arrow_down: | | [macos](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `54.05% <ø> (+1.20%)` | :arrow_up: | | [pytests](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.54% <ø> (ø)` | | | [sanity-checks](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `1.34% <ø> (ø)` | | | [unittests](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `65.24% <ø> (+<0.01%)` | :arrow_up: | | [upgradability](https://app.codecov.io/gh/near/nearcore/pull/12057/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near) | `0.21% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=near#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.