Upgrade CHART_VERSION to 3.7.0

[turkenf]

Description of your changes

Upgrades Kyverno addon from chart version 3.6.2 to 3.7.0 (app version v1.16.2 → v1.17.0).

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• [ ] Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

Tested the upgrade path from 3.6.2 (v1.16.2) to 3.7.0 (v1.17.0) in a local UXP environment (kind cluster):

> kubectl get addon upbound-addon-kyverno
NAME                    INSTALLED   HEALTHY   PACKAGE                                       AGE
upbound-addon-kyverno   True        True      xpkg.upbound.io/upbound/addon-kyverno:3.6.2   7m24s
> kubectl get pods -n kyverno-system
NAME                                             READY   STATUS    RESTARTS   AGE
kyverno-admission-controller-55b698d49f-2zcz5    1/1     Running   0          2m35s
kyverno-background-controller-7cd8777446-6d9wx   1/1     Running   0          2m35s
kyverno-cleanup-controller-f549db969-ggkwz       1/1     Running   0          2m35s
kyverno-reports-controller-6d4448cfc9-86b78      1/1     Running   0          2m35s
> kubectl get pods -n kyverno-system -o jsonpath='{.items[*].spec.containers[0].image}' | tr ' ' '\n'
xpkg.upbound.io/upbound/kyverno:v1.16.2
xpkg.upbound.io/upbound/kyverno-background-controller:v1.16.2
xpkg.upbound.io/upbound/kyverno-cleanup-controller:v1.16.2
xpkg.upbound.io/upbound/kyverno-reports-controller:v1.16.2%
> kubectl get clusterpolicy
NAME             ADMISSION   BACKGROUND   READY   AGE   MESSAGE
require-labels   true        true         True    29s   Ready
> kubectl get addon upbound-addon-kyverno
NAME                    INSTALLED   HEALTHY   PACKAGE                                               AGE
upbound-addon-kyverno   True        True      xpkg.upbound.io/upbound/addon-kyverno:3.7.0-5699fb9   20m
> kubectl get pods -n kyverno-system -o jsonpath='{.items[*].spec.containers[0].image}' | tr ' ' '\n'
xpkg.upbound.io/upbound/kyverno:v1.17.0
xpkg.upbound.io/upbound/kyverno-background-controller:v1.17.0
xpkg.upbound.io/upbound/kyverno-cleanup-controller:v1.17.0
xpkg.upbound.io/upbound/kyverno-cli:v1.17.0
xpkg.upbound.io/upbound/kyverno-reports-controller:v1.17.0%
> kubectl get clusterpolicy
NAME             ADMISSION   BACKGROUND   READY   AGE   MESSAGE
require-labels   true        true         True    11m   Ready