[ci skip] Don't run GitHub actions on forks

Closes GH-8111
Closes GH-8119

Author: iluuu1994

.github/workflows/close-needs-feedback.yml

@@ -6,6 +6,7 @@ on:
 
 jobs:
   build:
+    if: github.repository_owner == 'php'
     runs-on: ubuntu-latest
     steps:
       - name: Close old issues that need feedback

.github/workflows/close-stale-prs.yml

@@ -6,6 +6,7 @@ on:
 
 jobs:
   stale:
+    if: github.repository_owner == 'php'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/stale@v4

.github/workflows/remove-needs-feedback.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    if: "contains(github.event.issue.labels.*.name, 'Status: Needs Feedback') && github.event.issue.user.login == github.event.sender.login"
+    if: "github.repository_owner == 'php' && contains(github.event.issue.labels.*.name, 'Status: Needs Feedback') && github.event.issue.user.login == github.event.sender.login"
     runs-on: ubuntu-latest
     steps:
       - uses: actions-ecosystem/action-remove-labels@v1