feature: stream timeouts

[rustatian]

Reason for This PR

ref: roadrunner-server/roadrunner#923
CC: @roxblnfk

Description of Changes

• Add stream timeout pool option.
• Fix worker stream behavior.

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]

Codecov Report

Merging #92 (caf555a) into master (d4175c2) will decrease coverage by 1.44%.
The diff coverage is 25.00%.

@@            Coverage Diff             @@
##           master      #92      +/-   ##
==========================================
- Coverage   79.36%   77.92%   -1.44%     
==========================================
  Files          23       23              
  Lines        2006     2043      +37     
==========================================
  Hits         1592     1592              
- Misses        363      399      +36     
- Partials       51       52       +1     

Files Changed	Coverage Δ
worker/worker.go	71.31% <16.66%> (-6.31%)	⬇️
payload/payload.go	40.00% <25.00%> (-60.00%)	⬇️
pool/static_pool/workers_pool.go	69.81% <28.57%> (-0.32%)	⬇️
pool/static_pool/debug.go	28.81% <50.00%> (+0.94%)	⬆️
pool/config.go	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes