Disable all workloads feature

[bradcarman]

Closes #25

[codecov[bot]]

Codecov Report

Merging #27 (2d48a64) into main (11410b2) will decrease coverage by 0.96%. The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
- Coverage   93.18%   92.22%   -0.96%     
==========================================
  Files           3        3              
  Lines          88       90       +2     
==========================================
+ Hits           82       83       +1     
- Misses          6        7       +1     

Impacted Files	Coverage Δ
src/workloads.jl	86.27% <66.66%> (-1.49%)	:arrow_down:

[timholy]

Thanks!