fix: remove bors

Bors has been deprecated, and I don't think a replacement is needed

Reverts #596

.github/workflows/ci.yml

@@ -2,7 +2,7 @@
 name: CI
 on:
   push:
-    branches: [main, staging, trying]
+    branches: [main]
   pull_request:
     branches: [main]
 jobs:
@@ -171,13 +171,3 @@ jobs:
 
       - name: Copy/Paste Detector
         run: phpcpd app/ --min-lines=50
-  ci-success:
-    name: CI
-    if: ${{ success() }}
-    needs:
-      - test-php-mysql
-      - test-php-postgresql
-    runs-on: ubuntu-latest
-    steps:
-      - name: CI succeeded
-        run: exit 0

README.md

@@ -1,7 +1,7 @@
 
 # Book me a Cookie [BMAC]
 
-![CI](https://github.com/daveroverts/bmac/workflows/CI/badge.svg) [![Bors enabled](https://bors.tech/images/badge_small.svg)](https://app.bors.tech/repositories/56570)
+![CI](https://github.com/daveroverts/bmac/workflows/CI/badge.svg)
 
 
 Book me a Cookie [BMAC] is a Vatsim booking system created in Laravel.