Merge branch 'stable'

Author: dktapps

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     if: "!contains(github.event.head_commit.message, '[ci skip]')"
     strategy:
       matrix:
-        php: ['7.2', '7.3', '7.4']
+        php: ['7.2', '7.3', '7.4', '8.0']
     name: PHP ${{ matrix.php }}
     steps:
     - uses: actions/checkout@v2

composer.json

@@ -8,7 +8,7 @@
 		"php-64bit": "*"
 	},
 	"require-dev": {
-		"phpstan/phpstan": "0.12.63",
+		"phpstan/phpstan": "0.12.67",
 		"phpstan/extension-installer": "^1.0",
 		"phpstan/phpstan-strict-rules": "^0.12.4"
 	},