[stable/mongodb] Use string instead of int in the tag (#5893)

* [stable/mongodb] Use string instead of int in the tag

* Increase chart version

* Use trimAll

* Use toString

stable/mongodb/Chart.yaml

@@ -1,5 +1,5 @@
 name: mongodb
-version: 2.0.6
+version: 2.0.7
 appVersion: 3.6.5
 description: NoSQL document-oriented database that stores JSON-like documents with dynamic schemas, simplifying the integration of data in content-driven applications.
 keywords:

stable/mongodb/templates/_helpers.tpl

@@ -21,6 +21,6 @@ Return the proper image name
 {{- define "mongodb.image" -}}
 {{- $registryName :=  .Values.image.registry -}}
 {{- $repositoryName := .Values.image.repository -}}
-{{- $tag := .Values.image.tag -}}
+{{- $tag := .Values.image.tag | toString -}}
 {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
 {{- end -}}