fix(operator): fix cpu stress and memory stress builder

[mlycore]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What this PR does / why we need it:

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?

[codecov-commenter]

Codecov Report

Merging #405 (eb58e3a) into main (3604a24) will decrease coverage by 1.33%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #405      +/-   ##
==========================================
- Coverage   39.71%   38.38%   -1.33%     
==========================================
  Files          51       52       +1     
  Lines        6083     6335     +252     
==========================================
+ Hits         2416     2432      +16     
- Misses       3448     3674     +226     
- Partials      219      229      +10     

Impacted Files	Coverage Δ
...ator/cmd/shardingsphere-operator/manager/option.go	49.53% <0.00%> (ø)
...phere-operator/pkg/controllers/chaos_controller.go	0.00% <0.00%> (ø)

... and 4 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
2 Code Smells

No Coverage information
0.0% Duplication

[mlycore]

ref #290