Bump for JuliaCon 2022

[carstenbauer]

• [ ] update screenshots
• [x] reactivate https://github.com/JuliaCon/JuliaConDataArchive/actions/workflows/fetch_juliacon_schedule.yml once schedule is only
• [x] give everything a quick test

[codecov-commenter]

Codecov Report

Merging #30 (29ea73e) into master (07a21a2) will increase coverage by 0.95%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
+ Coverage   92.73%   93.69%   +0.95%     
==========================================
  Files           4        4              
  Lines         303      317      +14     
==========================================
+ Hits          281      297      +16     
+ Misses         22       20       -2     

Impacted Files	Coverage Δ
src/JuliaCon.jl	100.00% <ø> (ø)
src/preferences.jl	100.00% <100.00%> (ø)
src/schedule.jl	92.83% <100.00%> (+1.16%)	:arrow_up:
src/tshirtcode.jl	87.50% <100.00%> (+1.78%)	:arrow_up:

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