feat(argo-rollouts): Upgrade Argo Rollouts to v1.5.0 (#2039)

* feat(argo-rollouts): Upgrade Argo Rollouts to v1.5.0
Signed-off-by: yu-croco <yu.croco@gmail.com>

* feat(argo-rollouts): Add missing configmap for 3rd party metrics providers
Signed-off-by: yu-croco <yu.croco@gmail.com>

* feat: Add signing information

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

---------

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
Co-authored-by: Jason Meridth <jmeridth@gmail.com>

charts/argo-rollouts/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v2
-appVersion: v1.4.1
+appVersion: v1.5.0
 description: A Helm chart for Argo Rollouts
 name: argo-rollouts
-version: 2.27.0
+version: 2.28.0
 home: https://github.com/argoproj/argo-helm
 icon: https://argoproj.github.io/argo-rollouts/assets/logo.png
 keywords:
@@ -14,6 +14,11 @@ maintainers:
   - name: argoproj
     url: https://argoproj.github.io/
 annotations:
+  artifacthub.io/signKey: |
+    fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
+    url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
+    - kind: changed
+      description: Upgrade Argo Rollouts to v1.5.0
     - kind: added
-      description: Allow extraObjects to contain string templates
+      description: Introduce chart signing