Fix k8s deployment files config path

- Change config map mounts in both skipper/dataflow
  from `/config` to `/workspace/config` as that a pwd
  of new images for running server.
- Fixes #4514

Author: jvalkeal

src/kubernetes/server/server-deployment.yaml

@@ -20,7 +20,7 @@ spec:
         imagePullPolicy: Always
         volumeMounts:
           - name: config
-            mountPath: /config
+            mountPath: /workspace/config
             readOnly: true
           - name: database
             mountPath: /etc/secrets/database

src/kubernetes/skipper/skipper-deployment.yaml

@@ -20,7 +20,7 @@ spec:
         imagePullPolicy: Always
         volumeMounts:
           - name: config
-            mountPath: /config
+            mountPath: /workspace/config
             readOnly: true
           - name: database
             mountPath: /etc/secrets/database

src/templates/kubernetes/server/server-deployment.yaml

@@ -20,7 +20,7 @@ spec:
         imagePullPolicy: Always
         volumeMounts:
           - name: config
-            mountPath: /config
+            mountPath: /workspace/config
             readOnly: true
           - name: database
             mountPath: /etc/secrets/database

src/templates/kubernetes/skipper/skipper-deployment.yaml

@@ -20,7 +20,7 @@ spec:
         imagePullPolicy: Always
         volumeMounts:
           - name: config
-            mountPath: /config
+            mountPath: /workspace/config
             readOnly: true
           - name: database
             mountPath: /etc/secrets/database