feat: bump kubectl to 1.30.5 with cve fix

[SandhyaRavi2403]

What problem does this PR solve?:
bump kubectl image in apps to 1.30.5

`sandhya.ravi@GT9X7CVF5F kommander-applications % trivy i docker.io/bitnami/kubectl:1.30.5
2024-09-30T12:20:15+05:30 INFO Vulnerability scanning is enabled
2024-09-30T12:20:15+05:30 INFO Secret scanning is enabled
2024-09-30T12:20:15+05:30 INFO If your scanning is slow, please try '--scanners vuln' to disable secret scanning
2024-09-30T12:20:15+05:30 INFO Please see also https://aquasecurity.github.io/trivy/v0.53/docs/scanner/secret#recommendation for faster secret detection
2024-09-30T12:20:18+05:30 INFO Detected OS family="debian" version="12.7"
2024-09-30T12:20:18+05:30 INFO [debian] Detecting vulnerabilities... os_version="12" pkg_num=127
2024-09-30T12:20:18+05:30 INFO Number of language-specific files num=5
2024-09-30T12:20:18+05:30 INFO [gobinary] Detecting vulnerabilities...
2024-09-30T12:20:18+05:30 INFO [bitnami] Detecting vulnerabilities...
2024-09-30T12:20:18+05:30 WARN Using severities from other vendors for some vulnerabilities. Read https://aquasecurity.github.io/trivy/v0.53/docs/scanner/vulnerability#severity-selection for details.

docker.io/bitnami/kubectl:1.30.5 (debian 12.7)

Total: 123 (UNKNOWN: 0, LOW: 83, MEDIUM: 28, HIGH: 11, CRITICAL: 1)`

Which issue(s) does this PR fix?:
https://jira.nutanix.com/browse/NCN-102768

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Checklist

• If the PR adds a version bump, ensure there is no breaking change in Licensing model (or NA).
• If a chart is changed or app configuration is significantly changed, the chart version is correctly incremented (so that apps are not automatically upgraded from a previous version of DKP).

[github-actions]

✅ Created Kommander branch to test kommander-applications changes: https://github.com/mesosphere/kommander/tree/kapps/main/sandy/kubectl-cve-fix

[coveralls]

Pull Request Test Coverage Report for Build 11146410882

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 51.557%

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Totals
Change from base Build 11135505891:	0.0%
Covered Lines:	149
Relevant Lines:	289

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💛 - Coveralls

[SandhyaRavi2403]

@mhrabovcin The tests for traefik is failing, https://github.com/mesosphere/kommander-applications/actions/runs/11146410931/job/30978433524?pr=2677#step:6:272
I am not very sure what needs to be updated here. could you suggest

[mhrabovcin]

@SandhyaRavi2403 since this PR doesn't change the traefik configuration and the failing check is not required I think this can be investigated as a separate effort. We can merge this PR.