fix: fix examples restart make command, reduce prometheus resources

[mowies]

This PR

• reduces the replicas for promtheus services in the examples so that they can be run easier on less powerful environments
• fixes the make restart command so that it works with the prefixes that helm applies to deployments

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[codecov]

Codecov Report

Merging #1158 (80efb82) into main (b27adf1) will increase coverage by 0.04%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1158      +/-   ##
==========================================
+ Coverage   59.03%   59.08%   +0.04%     
==========================================
  Files         126      126              
  Lines       10033    10033              
==========================================
+ Hits         5923     5928       +5     
+ Misses       3892     3889       -3     
+ Partials      218      216       -2     

see 3 files with indirect coverage changes

Flag	Coverage Δ
certificate-operator	64.15% <ø> (ø)
component-tests	59.97% <ø> (-0.22%)	⬇️
lifecycle-operator	78.52% <ø> (ø)
metrics-operator	77.57% <ø> (ø)
scheduler	21.17% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

[odubajDT]

Can you please fix the semantic PR check ? @mowies

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[thschue]

lgtm