watchman was upgraded significantly during the last #14944 (4.9.0 (Aug 16, 2017) to 2023.01.30.00 - 6 years between):
status-im/nixpkgs@4e9c02b
Probably causing developers to have "too many files open" issue #16341
This PR is an attempt to fix the issue by downgrading the watchman
Signed-off-by: Jakub Sokołowski <jakub@status.im>