fix(argo-workflows): Fix trailing whitespace in controller ConfigMap (#2451)

This commit addresses two places where trailing whitespace may be
generated in the workflow-controller ConfigMap.

When the value `.resourceRateLimit` is not null, a trailing whitespace
is added after "resourceRateLimit:". This commit trims that whitespace.

When the value `.sso.redirectUrl` is left as the default of empty string,
a trailing whitespace is left after "redirectUrl:" as this value is not
quoted. This commit pipes this value through `quote` to ensure this
whitespace is no longer trailing and instead followed by `"` pair.

The main motivation of this commit is to generate a workflow-controller
ConfigMap that is properly pretty-printed, which trailing whitespace
prevents.

Signed-off-by: James Slater <SlaterByte@users.noreply.github.com>
Co-authored-by: James Slater <SlaterByte@users.noreply.github.com>

charts/argo-workflows/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v3.5.4
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.40.7
+version: 0.40.8
 icon: https://argoproj.github.io/argo-workflows/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 sources:
@@ -17,4 +17,4 @@ annotations:
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: fixed
-      description: Wrong identation in artifactRepository block
+      description: Remove trailing whitespace from `.resourceRateLimit` when value is set and `.sso.redirectUrl` when value is an empty string.

charts/argo-workflows/templates/controller/workflow-controller-config-map.yaml

@@ -19,7 +19,7 @@ data:
     parallelism: {{ .Values.controller.parallelism }}
     {{- end }}
     {{- if .Values.controller.resourceRateLimit }}
-    resourceRateLimit: {{ toYaml .Values.controller.resourceRateLimit | nindent 6 }}
+    resourceRateLimit: {{- toYaml .Values.controller.resourceRateLimit | nindent 6 }}
     {{- end }}
     {{- with .Values.controller.namespaceParallelism }}
     namespaceParallelism: {{ . }}
@@ -141,7 +141,7 @@ data:
       clientSecret:
         name: {{ .Values.server.sso.clientSecret.name }}
         key: {{ .Values.server.sso.clientSecret.key }}
-      redirectUrl: {{ .Values.server.sso.redirectUrl }}
+      redirectUrl: {{ .Values.server.sso.redirectUrl | quote }}
       rbac:
         enabled: {{ .Values.server.sso.rbac.enabled }}
       {{- with .Values.server.sso.scopes }}