ci: disable commitlint footer rules

[michaelbeaumont]

Summary

The specifics of the footer aren't super important for us.

[codecov-commenter]

Codecov Report

Merging #3407 (f906d0b) into master (d26eb3a) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3407      +/-   ##
==========================================
+ Coverage   52.17%   52.19%   +0.01%     
==========================================
  Files         940      940              
  Lines       54668    54668              
==========================================
+ Hits        28525    28532       +7     
+ Misses      23925    23914      -11     
- Partials     2218     2222       +4     

Impacted Files	Coverage Δ
pkg/core/runtime/component/component.go	81.13% <0.00%> (-7.55%)	⬇️
pkg/defaults/components.go	87.75% <0.00%> (-4.09%)	⬇️
pkg/core/resources/model/rest/resource.go	67.94% <0.00%> (-1.29%)	⬇️
pkg/core/resources/manager/cache.go	85.71% <0.00%> (ø)
pkg/xds/generator/direct_access_proxy_generator.go	83.90% <0.00%> (+1.14%)	⬆️
pkg/insights/resyncer.go	69.89% <0.00%> (+2.67%)	⬆️
pkg/events/eventbus.go	92.59% <0.00%> (+7.40%)	⬆️
pkg/insights/components.go	100.00% <0.00%> (+30.00%)	⬆️

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