Merge pull request #2809 from k8s-infra-cherrypick-robot/cherry-pick-2808-to-release-1.6

[release-1.6] update metadata.yaml for 1.6 release and 1.7 dev cycle

Author: k8s-ci-robot

metadata.yaml

@@ -32,3 +32,6 @@ releaseSeries:
   - major: 1
     minor: 5
     contract: v1beta1
+  - major: 1
+    minor: 6
+    contract: v1beta1

test/e2e/config/azure-dev.yaml

@@ -92,7 +92,7 @@ providers:
       replacements:
       - old: "imagePullPolicy: Always"
         new: "imagePullPolicy: IfNotPresent"
-    - name: v1.6.99 # "vNext"; use manifests from local source files
+    - name: v1.7.99 # "vNext"; use manifests from local source files
       value: "${PWD}/config/default"
       contract: v1beta1
       files:

test/e2e/data/shared/v1beta1_provider/metadata.yaml

@@ -16,3 +16,6 @@ releaseSeries:
   - major: 1
     minor: 6
     contract: v1beta1
+  - major: 1
+    minor: 7
+    contract: v1beta1