chore(actions): add gh-actions for cwc-v2 branch (#9810)

### Description

Adds GH workflows for `carbon-web-components@v2` feature branch.

### Changelog

**New**

- {{new thing}}

**Changed**

- {{changed thing}}

**Removed**

- {{removed thing}}

<!-- React and Web Component deploy previews are enabled by default. -->
<!-- To enable additional available deploy previews, apply the following -->
<!-- labels for the corresponding package: -->
<!-- *** "test: e2e": Codesandbox examples and e2e integration tests -->
<!-- *** "package: services": Services -->
<!-- *** "package: utilities": Utilities -->
<!-- *** "RTL": React / Web Components (RTL) -->
<!-- *** "feature flag": React / Web Components (experimental) -->

.github/workflows/automerge-cwc-v2.yml

@@ -0,0 +1,29 @@
+name: automerge-cwc-v2
+on:
+  push:
+    branches:
+      - 'main'
+
+concurrency:
+  group: automerge-cwc-v2-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  automerge-mastheadv2:
+    if: github.repository == 'carbon-design-system/carbon-for-ibm-dotcom'
+    runs-on: ubuntu-20.04
+    env:
+      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Merge to feat/cwc-v2
+        uses: devmasx/[email protected]
+        with:
+          type: now
+          target_branch: 'feat/cwc-v2'
+        env:
+          GITHUB_TOKEN: ${{secrets.MERGE_ACTION}}
+      - uses: act10ns/slack@v1
+        with:
+          status: ${{ job.status }}
+        if: failure()

.github/workflows/ci-check.yml

@@ -2,9 +2,9 @@ name: ci-check
 
 on:
   push:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
   pull_request:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
 
 concurrency:
   group: ci-check-${{ github.ref }}

.github/workflows/codeql-analysis.yml

@@ -13,7 +13,7 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ main ]

.github/workflows/e2e-tests.yml

@@ -2,9 +2,9 @@ name: e2e-tests
 
 on:
   push:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
   pull_request:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
 
 concurrency:
   group: e2e-tests-${{ github.ref }}

.github/workflows/percy-update-base.yml

@@ -2,7 +2,7 @@ name: percy-update-base
 
 on:
   push:
-    branches: [ main, release/* ]
+    branches: [ main, release/*, feat/cwc-v2 ]
 
 concurrency:
   group: percy-update-base-${{ github.ref }}