Fix #926: Do not initiate policy engine incase of --config-only flag

[devang-gaur]

fixes #926

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #930 (4dc9e31) into master (5513a0f) will decrease coverage by 0.03%.
The diff coverage is 79.16%.

@@            Coverage Diff             @@
##           master     #930      +/-   ##
==========================================
- Coverage   79.04%   79.01%   -0.04%     
==========================================
  Files         211      211              
  Lines        5150     5156       +6     
==========================================
+ Hits         4071     4074       +3     
- Misses        834      836       +2     
- Partials      245      246       +1     

Impacted Files	Coverage Δ
pkg/cli/scan.go	69.23% <0.00%> (-2.77%)	⬇️
pkg/runtime/executor.go	88.42% <71.42%> (-1.23%)	⬇️
pkg/cli/run.go	88.88% <80.00%> (ø)
pkg/http-server/file-scan.go	81.18% <100.00%> (ø)
pkg/http-server/remote-repo.go	71.01% <100.00%> (ø)
pkg/initialize/run.go	64.28% <100.00%> (ø)
pkg/k8s/admission-webhook/validating-webhook.go	83.44% <100.00%> (ø)