test: assert there are no embeddings by default

[CatStark]

(The previous branch had a mess while rebasing master. This is the same but the updated master will prevents the other tests in CI to fail)

As discussed here right now there is no way to access the embedding. They are being excluded by default during query time.
It refers to this issue

[codecov]

Codecov Report

Merging #2229 (2ef2efa) into master (9b3ab47) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2229      +/-   ##
==========================================
+ Coverage   90.42%   90.44%   +0.01%     
==========================================
  Files         208      208              
  Lines       11253    11253              
==========================================
+ Hits        10176    10178       +2     
+ Misses       1077     1075       -2     

Flag	Coverage Δ
daemon	51.25% <ø> (ø)
jina	90.90% <ø> (+0.01%)	⬆️

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Impacted Files	Coverage Δ
jina/peapods/runtimes/zmq/zed.py	92.90% <0.00%> (+1.41%)	⬆️

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[github-actions]

Latency summary

Current PR yields:

• 😶 index QPS at 1003, delta to last 3 avg.: +1%
• 😶 query QPS at 14, delta to last 3 avg.: -3%

Breakdown

Version	Index QPS	Query QPS
current	1003	14
1.0.15	1008	14
1.0.14	976	14

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