auto-assign PR from forks to Martin, Ray and Itai for triaging (#1125)

Author: isegall-da

.github/workflows/fork_labels.yml .github/workflows/assign_fork_prs.yml.github/workflows/fork_labels.yml renamed to .github/workflows/assign_fork_prs.yml

@@ -1,11 +1,11 @@
-name: Add labels to PRs from forks
+name: Auto-assign PRs from forks
 
 on:
   pull_request_target:
     types: [opened, reopened, edited]
 
 jobs:
-  add_labels:
+  assign:
     runs-on: self-hosted-docker-tiny
     if: github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     steps:
@@ -14,10 +14,9 @@ jobs:
         with:
           script: |
             const pr = context.payload.pull_request;
-            const labels = ['fork'];
-            await github.rest.issues.addLabels({
+            await github.rest.issues.addAssignees({
               issue_number: pr.number,
               owner: pr.base.repo.owner.login,
               repo: pr.base.repo.name,
-              labels: labels,
+              assignees: ['isegall-da', 'martinflorian-da', 'ray-roestenburg-da'],
             });