Fix links still pointing at older git repo (#167)

Signed-off-by: Kevin Fox <[email protected]>

charts/spire/Chart.yaml

@@ -6,9 +6,9 @@ type: application
 version: 0.16.0
 appVersion: "1.8.5"
 keywords: ["spiffe", "spire", "spire-server", "spire-agent", "oidc", "spire-controller-manager"]
-home: https://github.com/spiffe/helm-charts/tree/main/charts/spire
+home: https://github.com/spiffe/helm-charts-hardened/tree/main/charts/spire
 sources:
-  - https://github.com/spiffe/helm-charts/tree/main/charts/spire
+  - https://github.com/spiffe/helm-charts-hardened/tree/main/charts/spire
 icon: https://spiffe.io/img/logos/spire/icon/color/spire-icon-color.png
 maintainers:
   - name: marcofranssen