Signed-off-by: Santosh Kaluskar <dtshbl@gmail.com>

Enable RecoverPanic option on reconciler

Formalises the API requirements around TargetPath and ValuesKey,
which were the two fields missing validation within ValuesReference.
In both cases the validation was introduced at CRD level, so that
the apiserver will enforce it.

ValuesKey must be a valid Data Key. Therefore the same logic used by
upstream Kubernetes is reused here to ensure a valid key is being used.

For TargetPath a loose regex is being used to largely represent the
expected format. A max length of 250 is now being enforced.

This is a breaking change, as invalid TargetPath and ValuesKey will now
be rejected by the apiserver, instead of being accepted and potentially
failing at reconciliation time.

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

Add validation to TargetPath and ValuesKey

Dependencies updated:
- github.com/fluxcd/source-controller/api to version 0.27.0.
- github.com/onsi/gomega to version 1.20.0.
- helm.sh/helm to/version 3 to version 3.9.3.
- k8s.io/api to version 0.24.4.
- k8s.io/apiextensions-apise torversion er to version 0.24.3.
- k8s.io/apimachinery to version 0.24.4.
- k8s.io/cli-runtime to version 0.24.3.
- k8s.io/client-go to version 0.24.3.
- k8s.io/utils to version 0.0.0-20220812165043-ad590609e2e5.
- sigs.k8s.io/kustomize/api to version 0.12.1.
- github.com/fluxcd/pkg/apis/kustomize to version 0.4.2.
- github.com/fluxcd/pkg/apis/meta to version 0.14.2.

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

Update dependencies

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

Release v0.23.0