Bump image tags in helm chart for security patch

**What**
- Bump the tags for gateway, faas-netes, queue-worker, idler, and basic
auth so that they include the security patch to Go 1.11.13

Resolves openfaas#495

Signed-off-by: Lucas Roesler <[email protected]>

chart/openfaas/values.yaml

@@ -16,7 +16,7 @@ basic_auth: true
 openfaasImagePullPolicy: "Always"
 
 gateway:
-  image: openfaas/gateway:0.16.0
+  image: openfaas/gateway:0.17.0
   readTimeout : "65s"
   writeTimeout : "65s"
   upstreamTimeout : "60s"  # Must be smaller than read/write_timeout
@@ -32,7 +32,7 @@ gateway:
       cpu: "50m"
 
 faasnetes:
-  image: openfaas/faas-netes:0.8.4
+  image: openfaas/faas-netes:0.8.5
   readTimeout : "60s"
   writeTimeout : "60s"
   imagePullPolicy : "Always"    # Image pull policy for deployed functions
@@ -64,7 +64,7 @@ operator:
       cpu: "50m"
 
 queueWorker:
-  image: openfaas/queue-worker:0.7.2
+  image: openfaas/queue-worker:0.8.0
   ackWait : "60s"
   replicas: 1
   gatewayInvoke: true
@@ -115,7 +115,7 @@ ingress:
 
 # faas-idler configuration
 faasIdler:
-  image: openfaas/faas-idler:0.1.9
+  image: openfaas/faas-idler:0.2.1
   replicas: 1
   create: true
   inactivityDuration: 15m               # If a function is inactive for 15 minutes, it may be scaled to zero
@@ -126,7 +126,7 @@ faasIdler:
       memory: "64Mi"
 
 basicAuthPlugin:
-  image: openfaas/basic-auth-plugin:0.1.1
+  image: openfaas/basic-auth-plugin:0.17.0
   replicas: 1
   resources:
     requests: