docs: update all api-version to v2 (#1189)

Signed-off-by: Jintao Zhang <zhangjintao9020@gmail.com>

docs/en/latest/concepts/annotations.md

@@ -219,7 +219,7 @@ ApisixPluginConfig is a resource under the same Namespace as Ingress
 As an example, we attach the annotation `k8s.apisix.apache.org/plugin-conifg-name: "echo-and-cors-apc` for the following Ingress resource, so that `/api/*` route will enable the [echo](https://apisix.apache.org/docs/apisix/plugins/echo/) and [cors](https://apisix.apache.org/docs/apisix/plugins/cors/) plugins.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixPluginConfig
 metadata:
   name: echo-and-cors-apc

docs/en/latest/concepts/apisix_cluster_config.md

@@ -35,7 +35,7 @@ if you'd like to learn the real running status of your cluster. In such a case,
 could create a `ApisixClusterConfig` to enable these features explicitly.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixClusterConfig
 metadata:
   name: default
@@ -58,7 +58,7 @@ The default APISIX cluster is configured through command line options like `--de
 of Deployment or Pod template. Now with the help of `ApisixClusterConfig`, you can change some administrative fields on it.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixClusterConfig
 metadata:
   name: default

docs/en/latest/concepts/apisix_route.md

@@ -35,7 +35,7 @@ should be routed to service `bar`, in the manner of `ApisixRoute`, the configura
 should be:
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: foo-bar-route
@@ -73,7 +73,7 @@ The `methods` splits traffic according to the HTTP method, the following configu
 with `GET` method to `foo` service (a Kubernetes Service).
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: method-route
@@ -94,7 +94,7 @@ The `exprs` allows user to configure match conditions with arbitrary predicates
 It's composed by several expressions, which in turn composed by subject, operator and value/set.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: method-route
@@ -128,7 +128,7 @@ the `ClusterIP` of this service, if that's what you want, just set
 the `resolveGranularity` to `service` (default is `endpoint`).
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: method-route
@@ -155,7 +155,7 @@ will be applied (which actually uses the [traffic-split](http://apisix.apache.or
 You can specify weight for each backend, the default weight is `100`.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: method-route
@@ -193,7 +193,7 @@ Apache APISIX provides more than 70 [plugins](https://github.com/apache/apisix/t
 in `ApisixRoute`. All configuration items are named same to the one in APISIX.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: httpbin-route
@@ -223,7 +223,7 @@ Websocket Proxy
 by creating a route with specifying the `websocket` field.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: ws-route
@@ -247,7 +247,7 @@ TCP Route
 apisix-ingress-controller supports the port-based tcp route.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: tcp-route
@@ -272,7 +272,7 @@ UDP Route
 apisix-ingress-controller supports the port-based udp route.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: udp-route

docs/en/latest/concepts/apisix_tls.md

@@ -27,7 +27,7 @@ Secret must have two keys `cert` and `key`, which used to store the certificate
 PEM format respectively.
 
 ```shell
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixTls
 metadata:
   name: sample-tls

docs/en/latest/concepts/apisix_upstream.md

@@ -32,7 +32,7 @@ To learn more, please check the [Apache APISIX architecture-design docs](https:/
 A proper load balancing algorithm is required to scatter requests reasonably for a Kubernetes Service.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: httpbin
@@ -58,7 +58,7 @@ The above example shows that [ewma](https://linkerd.io/2016/03/16/beyond-round-r
 Sometimes the session sticky is desired, and you can use the [Consistent Hashing](https://en.wikipedia.org/wiki/Consistent_hashing) load balancing algorithm.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: httpbin
@@ -77,7 +77,7 @@ Although Kubelet already provides [probes](https://kubernetes.io/docs/tasks/conf
 like the passive feedback capability.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: httpbin
@@ -128,7 +128,7 @@ if nothing has been sent to a client yet. That is, if an error or timeout occurs
 of the transferring of a response, fixing this is impossible.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: httpbin
@@ -140,7 +140,7 @@ The default connect, read and send timeout are `60s`, which might not proper for
 just change them in the `timeout` field.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: httpbin
@@ -159,7 +159,7 @@ Once in a while a single Kubernetes Service might expose multiple ports which pr
 In that case, you can create configurations for individual port.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixUpstream
 metadata:
   name: foo

docs/en/latest/design.md

@@ -122,7 +122,7 @@ Unlike the implementation of Kubernetes Nginx Ingress, the implementation of Ann
 For example, the settings of the black and white list can be configured through the `k8s.apisix.apache.org/whitelist-source-range` annotation in the `ApisixRoute` resource object.
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   annotations:

docs/en/latest/plugins/prometheus.md

@@ -28,7 +28,7 @@ This guide shows how to monitor Apache APISIX Ingress Controller using Prometheu
 Use CRD file to enable Prometheus in global configurations. The definition file for custom resources is `ApisixClusterConfig`, so the configuration should be:
 
 ```yaml
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixClusterConfig
 metadata:
   name: default

docs/en/latest/tutorials/check-crd-status.md

@@ -46,7 +46,7 @@ e.g.
 
 ```yaml
 kubectl apply -f - <<EOF
-apiVersion: apisix.apache.org/v2beta3
+apiVersion: apisix.apache.org/v2
 kind: ApisixRoute
 metadata:
   name: httpbin-route