[8.12](backport #2356) Upgrade helm to v3.14.2

[mergify]

Summary of your changes

In order to handle CVE-2024-26147, we are required to bump helm version.
Decided to remove the PSP fetching (left the rules) in order to bump the helm, elastic-agent-autodiscover, k8s apis.
After this PR we should handle the PSP case scenario correctly and deliver a hotfix (backport) in order to support it fully.

Related Issues

Related:

• https://github.com/elastic/security/issues/1961
• [8.15](backport #2356) Upgrade helm to v3.14.2 #2357
• Remove dependency on PSPs, allowing us to bump K8s libraries' versions #2353

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary README/documentation (if appropriate)

Introducing a new rule?

• Generate rule metadata using this script
• Add relevant unit tests
• Generate relevant rule templates using this script, and open a PR in elastic/packages/cloud_security_posture

---

This is an automatic backport of pull request #2356 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 0029a1a has failed:

On branch mergify/bp/8.12/pr-2356
Your branch is up to date with 'origin/8.12'.

You are currently cherry-picking commit 0029a1ad.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   deploy/k8s/fleet-managed-agent.yml
	modified:   deploy/k8s/standalone-agent.yml
	modified:   deploy/kustomize/base/role.yml
	modified:   deploy/kustomize/overlays/cloudbeat-vanilla-agent/manifests.yaml
	modified:   tests/commonlib/kubernetes.py
	modified:   tests/deploy/k8s-cloudbeat-tests/templates/cloudbeat-eks-pytest.yaml
	modified:   tests/deploy/k8s-cloudbeat-tests/templates/standalone-agent.yml
	modified:   tests/deploy/mock-pod.yml
	modified:   tests/deploy/sa-agent-pytest.yml

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .github/workflows/ci.yml
	both modified:   go.mod
	both modified:   go.sum
	both modified:   resources/fetching/fetchers/k8s/kube_fetcher_test.go
	both modified:   resources/fetching/fetchers/k8s/kube_provider.go
	both modified:   security-policies/RULES.md
	deleted by us:   tests/product/tests/data/k8s/k8s_object_cases.py
	both modified:   tests/product/tests/data/k8s_object/eks_k8s_object_test_cases.py
	deleted by us:   tests/test_environments/k8s-objects-all-cases.yml

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally