ci: update WELCOME-NEW-USERS workflow from global .github repo

Signed-off-by: microcks-bot <info@microcks.io>

Author: microcks-bot

.github/workflows/welcome-new-users.yml

@@ -8,7 +8,7 @@ name: Welcome New Users with Thanks and Tip non-stargazers ;-)
 on:
   issues:
     types: [opened]
-  pull_request_target:
+  pull_request:
     types: [opened, closed]
 
 # Explicitly disable all default GITHUB_TOKEN permissions at the workflow level.
@@ -46,10 +46,10 @@ jobs:
             🙏 It really helps the project to gain momentum and credibility. It's a small contribution back to the project with a big impact.
 
   welcome-pr-opened:
-    if: github.event_name == 'pull_request_target' && github.event.action == 'opened'
+    if: github.event_name == 'pull_request' && github.event.action == 'opened'
     runs-on: ubuntu-latest
     permissions:
-      issues: write
+      pull-requests: write
     steps:
       - uses: wow-actions/welcome@68019c2c271561f63162fea75bb7707ef8a02c85 # To pin v1.3.1
         with:
@@ -64,10 +64,10 @@ jobs:
             Hope you have a great time there!
 
   welcome-pr-merged:
-    if: github.event_name == 'pull_request_target' && github.event.action == 'closed' && github.event.pull_request.merged == true
+    if: github.event_name == 'pull_request' && github.event.action == 'closed' && github.event.pull_request.merged == true
     runs-on: ubuntu-latest
     permissions:
-      issues: write
+      pull-requests: write
     steps:
       - uses: wow-actions/welcome@68019c2c271561f63162fea75bb7707ef8a02c85 # To pin v1.3.1
         with: