Repository: vmware-tanzu/tanzu-framework (language: go)

Issue:
Use a GitHub Action to welcome new contributors 
**Feature Request**
To apply a GitHub Action ([see example](https://github.com/garg3133/welcome-new-contributors)) to welcome new contributors. 

**Affected product area (please put an X in all that apply)**

- [ ] APIs
- [ ] Addons
- [ ] CLI
- [ ] Docs
- [ ] Installation
- [ ] Plugin
- [ ] Security
- [ ] Test and Release
- [ ] User Experience

**Additional context**
Filed the same issue on TCE: https://github.com/vmware-tanzu/community-edition/issues/1537



Discussion / hints:
Noted as "between nice-to-have and should-have" by @vuil 
@navidshaikh do you think you can assign this as appropriate?

Fix patch:
diff --git a/.github/workflows/welcome-contributors.yaml b/.github/workflows/welcome-contributors.yaml
new file mode 100644
index 0000000000..75a857c6b5
--- /dev/null
+++ b/.github/workflows/welcome-contributors.yaml
@@ -0,0 +1,18 @@
+name: 'Housekeeping - Welcome New Contributors'
+
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  welcome-new-contributor:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Greet the contributor'
+        uses: garg3133/welcome-new-contributors@v1.2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          issue-message: 'Hey @contributor_name! Thanks for opening your first issue. We appreciate your contribution and welcome you to our community! We are glad to have you here and to have your input on Tanzu Framework.'
+          pr-message: 'Hi @contributor_name! And thank you for opening your first Pull Request. Someone will review it soon. Thank you for committing to making Tanzu Framework better.'


Test patch: