Update Flux

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/fluxcd/helm-controller	minor	v0.36.2 -> v0.37.0
registry1.dso.mil/ironbank/fluxcd/kustomize-controller	minor	v1.1.1 -> v1.2.0
registry1.dso.mil/ironbank/fluxcd/notification-controller	minor	v1.1.0 -> v1.2.2
registry1.dso.mil/ironbank/fluxcd/source-controller	minor	v1.1.2 -> v1.2.2

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Upgrade Notices

• Flux gets a minor update to 2.2.2 and the following component versions:
  • kustomize-controller: v1.2.1
  • helm-controller: v0.37.1
  • notification-controller: v1.2.3
  • The HelmRelease kind was promoted from v2beta1 to v2beta2.
  • The Alert and Provider kinds were promoted from v1beta2 to v1beta3.
  • OCIRepository and HelmChart: v1beta2.
  • HelmRepository and ImageRepository: v1beta2.
• We recommend updating Flux to stay up to date - we only test releases against the latest Flux version in Big Bang. Running the Flux update script via ./scripts/install_flux.sh -s will re-use your existing pull secret and update all components.
• You will receive warnings if you are using one of the previous APIVersions listed above but resources with this version will still create and will not delete so while you should migrate to the above versions of (non-BigBang) resources it is not a breaking change.