PHP 8.2 compatibility (#412)

Author: sidolov

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ 7.3, 7.4, 8.0 ]
+        php: [ 8.0, 8.1, 8.2 ]
 
     steps:
       - uses: actions/checkout@v2
@@ -37,7 +37,7 @@ jobs:
     needs: [composer]
     strategy:
       matrix:
-        php: [ 7.3, 7.4, 8.0 ]
+        php: [ 8.0, 8.1, 8.2 ]
 
     steps:
       - uses: actions/download-artifact@v2

composer.json

@@ -4,7 +4,7 @@
 	"type": "library",
 
 	"require": {
-		"php": ">=7.3",
+		"php": ">=8.0",
 		"ext-dom": "*",
 		"ext-libxml": "*",
 		"ext-mbstring": "*",