Fix for version handling with stringe vs semver (#4597)

* Fix for version handling with stringe vs semver

See #3002 for more details

* Include pre-releases in the semver ranges

This is important when testing against alpha and beta builds of
Kubernetes along with environments that use pre-releases to denote
things other than pre-releases (e.g., gke denotes the environment
with a pre-releases)

* Incrementing the chart version

stable/concourse/Chart.yaml

@@ -1,5 +1,5 @@
 name: concourse
-version: 1.1.3
+version: 1.1.4
 appVersion: 3.9.0
 description: Concourse is a simple and scalable CI system.
 icon: https://avatars1.githubusercontent.com/u/7809479

stable/concourse/templates/worker-statefulset.yaml

@@ -153,7 +153,7 @@ spec:
         - name: concourse-work-dir
           emptyDir: {}
   {{- end }}
-{{- if and (eq .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "7") }}
+{{- if semverCompare "^1.7-0" .Capabilities.KubeVersion.GitVersion }}
   updateStrategy:
     type: {{ .Values.worker.updateStrategy }}
 {{- end }}