fix: make load config static

[cristianmtr]

No description provided.

[JoanFM]

I think we can use many more staticmethods in many plaes

[codecov]

Codecov Report

Merging #1354 (782c1ac) into master (ed81dd3) will increase coverage by 0.09%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1354      +/-   ##
==========================================
+ Coverage   82.90%   83.00%   +0.09%     
==========================================
  Files         103      103              
  Lines        6746     6814      +68     
==========================================
+ Hits         5593     5656      +63     
- Misses       1153     1158       +5     

Impacted Files	Coverage Δ
jina/logging/sse.py	92.64% <0.00%> (-2.52%)	⬇️
jina/logging/profile.py	55.81% <0.00%> (-0.66%)	⬇️
jina/peapods/pea.py	92.11% <0.00%> (-0.34%)	⬇️
jina/peapods/pod.py	82.89% <0.00%> (-0.10%)	⬇️
jina/drivers/craft.py	100.00% <0.00%> (ø)
jina/types/ndarray/generic.py	100.00% <0.00%> (ø)
jina/executors/indexers/cache.py	100.00% <0.00%> (ø)
jina/executors/evaluators/text/length.py	100.00% <0.00%> (ø)
jina/executors/evaluators/rank/precision.py	100.00% <0.00%> (ø)
jina/types/document/__init__.py	96.87% <0.00%> (+0.01%)	⬆️
... and 19 more

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