Move e2e and istio e2e to master and release recheck. (#4048)

* Move e2e and istio e2e to master recheck.

* Try to run tests on tag(release)

* Add `v*` tag to trigger test only, as this is the release tag.

* Trigger CI again

.github/workflows/ci-it.yaml

@@ -21,6 +21,8 @@ on:
   push:
     branches: 
       - master
+    tags:
+      - 'v*'
     
 
 jobs:

.github/workflows/e2e.yaml

@@ -16,7 +16,13 @@
 
 name: E2E
 
-on: [pull_request]
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
 
 jobs:
   Single:

.github/workflows/istio-mixer-ci.yaml

@@ -16,7 +16,14 @@
 
 name: istio-mixer-ci
 
-on: [pull_request]
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
+
 env:
   SCRIPTS_DIR: ./test/e2e-mesh/e2e-istio/scripts
   LOG_DIR: /tmp/skywalking