Update maintainers

[Callisto13]

There are more of us now!

Closes #183

[richardcase]

Worth updating CODEOWNERS as well?

[codecov-commenter]

Codecov Report

Merging #186 (7b95d77) into main (89495b1) will increase coverage by 0.84%.
The diff coverage is 37.03%.

❗ Current head 7b95d77 differs from pull request most recent head 18000b7. Consider uploading reports for the commit 18000b7 to get more accurate results

@@            Coverage Diff             @@
##             main     #186      +/-   ##
==========================================
+ Coverage   54.04%   54.89%   +0.84%     
==========================================
  Files          45       45              
  Lines        1976     1991      +15     
==========================================
+ Hits         1068     1093      +25     
+ Misses        802      791      -11     
- Partials      106      107       +1     

Impacted Files	Coverage Δ
infrastructure/firecracker/config.go	0.00% <0.00%> (ø)
infrastructure/firecracker/provider.go	0.00% <0.00%> (ø)
core/steps/runtime/initrd_mount.go	100.00% <100.00%> (ø)
core/steps/runtime/kernel_mount.go	100.00% <100.00%> (ø)
core/steps/runtime/volume_mount.go	100.00% <100.00%> (ø)
pkg/queue/queue.go	93.93% <0.00%> (-6.07%)	⬇️
core/application/errors.go	0.00% <0.00%> (ø)
... and 2 more

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