bug(timeout): increase workflow pool timeout

[rustatian]

Reason for This PR

closes: #73

Description of Changes

• Increase timeout to 10 days (inf in terms of processing workers tasks).

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the MIT license.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any user-facing changes are mentioned in CHANGELOG.md.
• All added/changed functionality is tested.

[codecov-commenter]

Codecov Report

Merging #74 (148a728) into master (9e6bf02) will increase coverage by 0.17%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #74      +/-   ##
==========================================
+ Coverage   66.46%   66.63%   +0.17%     
==========================================
  Files          16       16              
  Lines         978      983       +5     
==========================================
+ Hits          650      655       +5     
  Misses        236      236              
  Partials       92       92              

Impacted Files	Coverage Δ
activity/activity_pool.go	75.00% <ø> (ø)
workflow/worker.go	81.15% <100.00%> (+1.47%)	⬆️

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