Limit length of created service names

[maxbischoff]

fixes: #113
fixes: #101

[johscheuer]

LGTM, just one thin: make lint happy and rebase to perform the e2e tests.

[codecov]

Codecov Report

Merging #122 into master will increase coverage by 0.19%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #122      +/-   ##
==========================================
+ Coverage   39.02%   39.21%   +0.19%     
==========================================
  Files          11       11              
  Lines        1330     1321       -9     
  Branches      264      264              
==========================================
- Hits          519      518       -1     
+ Misses        763      755       -8     
  Partials       48       48              

Impacted Files	Coverage Δ
src/illuminatio/illuminatio_runner.py	28.57% <0.00%> (+0.65%)	⬆️
src/illuminatio/k8s_util.py	21.73% <0.00%> (ø)
src/illuminatio/test_orchestrator.py	24.17% <0.00%> (+0.07%)	⬆️

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[johscheuer]

LGTM, thanks!