fix(operator): fix otel collector URL setup

[bacherfl]

Closes #1261

With these changes the traces should be exported correctly again:

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[codecov]

Codecov Report

Merging #1262 (6dd0a25) into main (497e57e) will increase coverage by 0.21%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1262      +/-   ##
==========================================
+ Coverage   59.19%   59.41%   +0.21%     
==========================================
  Files         137      137              
  Lines       10267    10269       +2     
==========================================
+ Hits         6078     6101      +23     
+ Misses       3960     3941      -19     
+ Partials      229      227       -2     

Impacted Files	Coverage Δ
operator/controllers/common/otel_utils.go	75.22% <100.00%> (+4.58%)	⬆️
...ator/controllers/options/keptnconfig_controller.go	81.57% <100.00%> (-0.93%)	⬇️

... and 5 files with indirect coverage changes

Flag	Coverage Δ
certificate-operator	64.15% <ø> (ø)
component-tests	59.71% <ø> (-0.58%)	⬇️
lifecycle-operator	78.19% <100.00%> (+0.16%)	⬆️
metrics-operator	77.80% <ø> (ø)
scheduler	21.75% <ø> (ø)

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication