Set security context for kube-hunter

[mlevesquedion]

Following discussion on #163, this PR adds a security context for kube-hunter, but only if the kube-hunter version is at least 0.4.1 (or latest, because that should only point to 0.4.1 or newer). Unfortunately, this means that if the version is set using the SHA, then no security context will be used.

[codecov]

Codecov Report

Merging #394 (78d5b42) into main (9aa35b1) will decrease coverage by 5.66%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main     #394      +/-   ##
==========================================
- Coverage   68.32%   62.66%   -5.67%     
==========================================
  Files          59       50       -9     
  Lines        3107     2850     -257     
==========================================
- Hits         2123     1786     -337     
- Misses        723      818      +95     
+ Partials      261      246      -15     

Impacted Files	Coverage Δ
pkg/kubehunter/scanner.go	82.56% <80.00%> (-0.98%)	⬇️
pkg/vulnerabilityreport/sort.go	0.00% <0.00%> (-100.00%)	⬇️
pkg/kubebench/io.go	38.09% <0.00%> (-47.62%)	⬇️
pkg/configauditreport/io.go	44.64% <0.00%> (-42.86%)	⬇️
pkg/kube/object.go	34.37% <0.00%> (-28.13%)	⬇️
pkg/trivy/plugin.go	47.90% <0.00%> (-26.58%)	⬇️
pkg/kubehunter/writer.go	56.52% <0.00%> (-26.09%)	⬇️
pkg/kube/secrets.go	21.11% <0.00%> (-24.45%)	⬇️
pkg/vulnerabilityreport/io.go	63.51% <0.00%> (-17.57%)	⬇️
pkg/resources/resources.go	76.47% <0.00%> (-11.77%)	⬇️
... and 12 more

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[danielpacak]

Overall the code looks good, but I have noticed change in behaviour were kube-hunter does not return certain vulnerabilities.