added manual trigger to test workflow

.github/workflows/tests.yml

@@ -1,5 +1,6 @@
 name: "Tests"
 on:
+  workflow_dispatch: {}
   push:
     branches:
       - master
@@ -12,7 +13,7 @@ jobs:
     name: PHP v8.1 with MongoDB 6.0
     concurrency: "ci-${{ github.ref }}"
     env:
-      extensions: curl, intl, mbstring, mongodb-stable, redis, opcache, sockets, pcntl
+      extensions: curl,intl,mbstring,mongodb-stable,redis,opcache,sockets,pcntl,xdebug
       key: jikan-rest-ci-cache-v1
       phpversion: 8.1
     services:
@@ -58,6 +59,8 @@ jobs:
         with:
           php-version: ${{ env.phpversion }}
           extensions: ${{ env.extensions }}
+          coverage: xdebug
+          tools: composer
 
       - name: Setup dependency cache
         id: composercache