chore: use Ubuntu 22.04 in CI

[crenshaw-dev]

No description provided.

[codecov]

Codecov Report

Merging #9587 (dae9aee) into master (50bf41f) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #9587      +/-   ##
==========================================
- Coverage   45.82%   45.80%   -0.03%     
==========================================
  Files         222      222              
  Lines       26376    26353      -23     
==========================================
- Hits        12087    12071      -16     
+ Misses      12642    12637       -5     
+ Partials     1647     1645       -2     

Impacted Files	Coverage Δ
server/application/websocket.go	8.33% <0.00%> (-4.57%)	⬇️
...is/applicationset/v1alpha1/applicationset_types.go	32.14% <0.00%> (-2.56%)	⬇️
server/application/terminal.go	10.67% <0.00%> (-2.16%)	⬇️
pkg/apiclient/grpcproxy.go	0.00% <0.00%> (ø)
pkg/apiclient/apiclient.go	0.84% <0.00%> (+0.03%)	⬆️

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[jannfis]

LGTM