chore: fix grafana dashboard datasource config

[bacherfl]

No description provided.

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[sonarqubecloud]

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 #2080 (2d18b88) into main (9a98e97) will increase coverage by 0.08%.
Report is 4 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2080      +/-   ##
==========================================
+ Coverage   83.98%   84.06%   +0.08%     
==========================================
  Files         150      150              
  Lines        9597     9597              
==========================================
+ Hits         8060     8068       +8     
+ Misses       1246     1241       -5     
+ Partials      291      288       -3     

see 3 files with indirect coverage changes

Flag	Coverage Δ
certificate-operator	68.55% <ø> (ø)
component-tests	58.48% <ø> (ø)
lifecycle-operator	84.94% <ø> (ø)
metrics-operator	85.43% <ø> (ø)
scheduler	32.12% <ø> (ø)

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