Adding use of ItemAdapter to prevent assumptions of item nature

[further-reading]

https://github.com/scrapinghub/spidermon/issues/353

[codecov[bot]]

Codecov Report

Base: 74.28% // Head: 74.62% // Increases project coverage by +0.34% :tada:

Coverage data is based on head (454eefc) compared to base (5020fca). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #358      +/-   ##
==========================================
+ Coverage   74.28%   74.62%   +0.34%     
==========================================
  Files          73       73              
  Lines        3126     3113      -13     
  Branches      487      366     -121     
==========================================
+ Hits         2322     2323       +1     
+ Misses        737      725      -12     
+ Partials       67       65       -2     

Impacted Files	Coverage Δ
spidermon/contrib/scrapy/extensions.py	85.41% <100.00%> (+0.15%)	:arrow_up:
spidermon/contrib/scrapy/pipelines.py	83.50% <100.00%> (+7.14%)	:arrow_up:
spidermon/contrib/validation/jsonschema/formats.py	100.00% <0.00%> (+28.57%)	:arrow_up:

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[kmike]

hey! Would it be possible to add tests for it?

[further-reading]

It's still a work in progress haha, of course there'll be tests. We can hold off on the reviews until its ready.

[VMRuiz]

Looks good to me.

I would however add itemadapter as a dependency now. Things will work either way because of the dependency with Scrapy, but it makes things more future-proof (e.g. in the unlikely case that Scrapy drops itemadapter as a dependency).

@further-reading Could you please fix the missing dependency in setup.py ?

[Gallaecio]

@further-reading Unless you plan on further changes, e.g. https://github.com/scrapinghub/spidermon/pull/358#discussion_r968693785, we can merge as far as I am concerned.

[further-reading]

@Gallaecio apologies I missed that one. Should be sorted out now

[Gallaecio]

Thank you!