fix: close peas correctly

[jacobowitz]

It can happen that a Pod closes a Pea before it was started (meaning its worker process has not yet been started). We should not wait for its termination then.

[codecov]

Codecov Report

Merging #4142 (d89e687) into master (3976695) will increase coverage by 0.66%.
The diff coverage is 89.63%.

@@            Coverage Diff             @@
##           master    #4142      +/-   ##
==========================================
+ Coverage   86.55%   87.21%   +0.66%     
==========================================
  Files         125      120       -5     
  Lines        9644     8681     -963     
==========================================
- Hits         8347     7571     -776     
+ Misses       1297     1110     -187     

Flag	Coverage Δ
daemon	42.19% <44.76%> (-7.34%)	⬇️
jina	84.61% <87.20%> (+2.28%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
jina/excepts.py	100.00% <ø> (ø)
jina/helloworld/chatbot/app.py	82.97% <ø> (-0.70%)	⬇️
jina/parsers/peapods/pea.py	100.00% <ø> (ø)
jina/parsers/peapods/pod.py	100.00% <ø> (ø)
jina/parsers/ping.py	100.00% <ø> (ø)
jina/peapods/peas/container_helper.py	73.80% <ø> (ø)
jina/peapods/runtimes/base.py	74.19% <ø> (-6.46%)	⬇️
jina/proto/jina_pb2.py	58.10% <46.55%> (-41.90%)	⬇️
jina/peapods/runtimes/__init__.py	61.11% <55.55%> (+4.58%)	⬆️
jina/peapods/pods/k8s.py	80.66% <74.13%> (+1.11%)	⬆️
... and 70 more

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[github-actions]

Latency summary

Current PR yields:

• 🐎🐎 index QPS at 1199, delta to last 2 avg.: +6%
• 🐎🐎🐎🐎 query QPS at 23, delta to last 2 avg.: +11%
• 🐎🐎🐎🐎 dam extend QPS at 37091, delta to last 2 avg.: +14%
• 🐎🐎🐎🐎 avg flow time within 1.1285 seconds, delta to last 2 avg.: -15%
• 😶 import jina within 0.4483 seconds, delta to last 2 avg.: +1%

Breakdown

Version	Index QPS	Query QPS	DAM Extend QPS	Avg Flow Time (s)	Import Time (s)
current	1199	23	37091	1.1285	0.4483
2.6.4	1128	20	33005	1.1507	0.4456
2.6.3	1129	20	31840	1.5261	0.4413

Backed by latency-tracking. Further commits will update this comment.