ci: add pip caching for docs workflow

[ksurl]

adds pip caching and python versioning for docs publishing workflow

[codecov]

Codecov Report

Merging #1292 (b0fb277) into main (2fa8a2a) will increase coverage by 1.23%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1292      +/-   ##
==========================================
+ Coverage   61.89%   63.13%   +1.23%     
==========================================
  Files          23       23              
  Lines        1475     1530      +55     
==========================================
+ Hits          913      966      +53     
+ Misses        476      474       -2     
- Partials       86       90       +4     

Impacted Files	Coverage Δ
pkg/api/api.go	39.28% <0.00%> (-4.05%)	⬇️
internal/actions/update.go	63.07% <0.00%> (-0.49%)	⬇️
pkg/container/container.go	51.92% <0.00%> (ø)
pkg/notifications/email.go	90.69% <0.00%> (ø)
pkg/notifications/msteams.go	66.66% <0.00%> (ø)
internal/flags/flags.go	89.11% <0.00%> (+0.46%)	⬆️
pkg/notifications/shoutrrr.go	74.69% <0.00%> (+1.62%)	⬆️
pkg/notifications/notifier.go	84.93% <0.00%> (+14.71%)	⬆️

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[piksel]

yeah, why not?

[piksel]

@all-contributors please add @ksurl for infra

[piksel]

@all-contributors please add @ksurl for infra

[allcontributors]

@piksel

I've put up a pull request to add @ksurl! 🎉