[stable/datadog] Allow pre-release versions as docker image tag (#22457)

See http://masterminds.github.io/sprig/semver.html#working-with-prerelease-versions

Signed-off-by: Lénaïc Huard <lenaic.huard@datadoghq.com>

stable/datadog/CHANGELOG.md

@@ -1,5 +1,9 @@
 # Datadog changelog
 
+## 2.3.3
+
+* Allow pre-release versions as docker image tag
+
 ## 2.3.2
 
 * Update the DCA RBAC to allow it to create events in the HPA

stable/datadog/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: datadog
-version: 2.3.2
+version: 2.3.3
 appVersion: "7"
 description: Datadog Agent
 keywords:

stable/datadog/templates/_helpers.tpl

@@ -13,7 +13,7 @@
 {{- if and (eq $length 1) (eq $version "latest") -}}
 {{- $version = "7.19.0" -}}
 {{- end -}}
-{{- if not (semverCompare "^6.19.0 || ^7.19.0" $version) -}}
+{{- if not (semverCompare "^6.19.0-0 || ^7.19.0-0" $version) -}}
 {{- fail "This version of the chart requires an agent image 7.19.0 or greater. If you want to force and skip this check, use `--set agents.image.doNotCheckTag=true`" -}}
 {{- end -}}
 {{- end -}}