feat(rest): expose reload api to rest interface

[hanxiao]

No description provided.

[codecov]

Codecov Report

Merging #2301 (ca29da0) into master (103bf2f) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2301      +/-   ##
==========================================
+ Coverage   90.33%   90.43%   +0.10%     
==========================================
  Files         211      211              
  Lines       11444    11453       +9     
==========================================
+ Hits        10338    10358      +20     
+ Misses       1106     1095      -11     

Flag	Coverage Δ
daemon	51.06% <7.14%> (-0.05%)	⬇️
jina	90.88% <100.00%> (+0.10%)	⬆️

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Impacted Files	Coverage Δ
jina/__init__.py	74.41% <100.00%> (ø)
jina/peapods/runtimes/asyncio/rest/app.py	86.61% <100.00%> (+0.69%)	⬆️
jina/peapods/runtimes/asyncio/rest/models.py	99.20% <100.00%> (+0.01%)	⬆️
jina/peapods/runtimes/zmq/zed.py	93.19% <0.00%> (+1.36%)	⬆️
jina/docker/hubio.py	82.97% <0.00%> (+2.15%)	⬆️

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[github-actions]

Latency summary

Current PR yields:

• 😶 index QPS at 1015, delta to last 3 avg.: +2%
• 😶 query QPS at 14, delta to last 3 avg.: -3%

Breakdown

Version	Index QPS	Query QPS
current	1015	14
1.1.2	987	14

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