increase TNS state downloading timeout to 120 seconds

[tersec]

Over time, the natural ratio of largeRequestsTimeout to smallRequestsTimeout should increase, since the states (which contain both active and inactive validators) grow faster than the ongoing network traffic (which contain only active validators).

Reported the other day in #dev-helpdesk in Discord:

[github-actions[bot]]

Unit Test Results

         9 files  ±0    1 334 suites  ±0   29m 27s :stopwatch: -40s   5 064 tests ±0    4 716 :heavy_check_mark: ±0  348 :zzz: ±0  0 :x: ±0  20 991 runs  ±0  20 587 :heavy_check_mark: ±0  404 :zzz: ±0  0 :x: ±0 

Results for commit 66a296c4. ± Comparison against base commit f258cba8.