feat: increase default poll interval for long running actions

[jooola]

By default, if an actions takes more than 5 seconds, gradually increase the poll interval from 500ms to a maximum of 2.5s.

This will reduce the amount of API request made for long running actions, also reducing the chances to run into the API requests rate limit.

If you need a constant poll interval, consider setting the --poll-interval flag to the desired value.

[codecov]

Codecov Report

❌ Patch coverage is 87.50000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.56%. Comparing base (8e903bb) to head (f758f38).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/state/state.go	87.50%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1364      +/-   ##
==========================================
- Coverage   72.57%   72.56%   -0.01%     
==========================================
  Files         300      300              
  Lines       10989    11004      +15     
==========================================
+ Hits         7975     7985      +10     
- Misses       2125     2128       +3     
- Partials      889      891       +2     

Flag	Coverage Δ
e2e	51.54% <87.50%> (+0.05%)	⬆️
unit	67.48% <0.00%> (-0.10%)	⬇️

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[jooola]

Too many tickets about API rate limit increase show a huge amount of request coming from the CLI polling for running actions. This changes the default with the hope to keep the CLI snappy for fast running actions, but without exhausting all the API requests for long running actions.

The exponential backoff function being capped to max 2.5s, it should still feel "snappy" even for long running actions, while cutting the amount of API request by ~x5.