Add more versions of PHP to the test matrix

Author: e1himself

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ '7.1', '7.2', '7.3', '7.4', '8.0' ]
+        php: [ '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
 
     steps:
       - uses: actions/checkout@master

composer.json

@@ -9,8 +9,8 @@
         "auto-wiring"
     ],
     "require": {
-        "php": ">=7.1",
-        "psr/container": "^1.0",
+        "php": "^7.1|^8.0",
+        "psr/container": "^1.0|^2.0",
         "technically/null-container": "^1.0",
         "technically/callable-reflection": "^0.4.0"
     },