Update Helm chart to support vulnerability processing

[noahtalerman]

Goal

User story
As a Fleet user that deploys Fleet using Fleet's default Helm chart,
I want Fleet's Helm chart, like AWS Terraform, to support vulnerability processing
so that I don't have to update Fleet's default Helm chart myself.

Key result

None.

Original requests

• Default resources specified in Helm chart are insufficient for vulnerability processing #25566

Context

• Product designer: @noahtalerman

Changes

Product

• Fleet's Helm chart changes: draft PR is here: Helm Chart: Move vulnerability processing to be a cronjob by default #25488
  • Follow up in PR with the these proposed changes:
    • External vulnerability scanning is off by default
    • 4GB memory by default
    • Why? This way Helm is consistent with AWS Terraform
• UI changes: No changes.
• CLI (fleetctl) usage changes: No changes.
• YAML changes: No changes.
• REST API changes: No changes.
• Fleet's agent (fleetd) changes: No changes.
• Activity changes: No changes.
• Permissions changes: No changes.
• Changes to paid features or tiers: No changes.
• Transparency changes: No changes.
• First draft of test plan added
  • @noahtalerman: No test plan for this Helm chart change.
• Other reference documentation changes: No changes.
• Once shipped, requester has been notified
• Once shipped, dogfooding issue has been filed
  • @noahtalerman: No dogfooding for this Helm chart change. Fleet uses AWS Terraform to deploy Fleet.

Engineering

• Test plan is finalized
  • @noahtalerman: No test plan for this Helm chart change.
• Feature guide changes: No changes.
• Database schema migrations: No changes.
• Load testing: No changes.

ℹ️  Please read this issue carefully and understand it. Pay special attention to UI wireframes, especially "dev notes".

QA

No QA/testing for this Helm chart change.

[pboushy]

Follow up in PR with the these proposed changes:

• External vulnerability scanning is off by default
• 4GB memory by default
• Why? This way Helm is consistent with AWS Terraform

Do y'all want me to make these 2 changes? (Was waiting to see comments on the PR to confirm that was the request)

[rfairburn]

@pboushy I had planned on commenting directly on the ticket this evening. With those changes, I believe we are in a place that we could approve this and get it pushed through.

Thanks for your work on this!