add phpstan in ci

.github/workflows/static-analysis.yml

@@ -2,7 +2,23 @@ name: Php Static analysis
 on: [push, pull_request]
 
 jobs:
-  static-psalm-analysis:
+  psalm:
+      runs-on: ubuntu-20.04
+      steps:
+          - name: Checkout
+            uses: actions/checkout@master
+          - name: Set up php
+            uses: shivammathur/setup-php@master
+            with:
+                php-version: 7.4
+                tools: composer:v1
+                coverage: none
+                extensions: redis
+          - name: Install dependencies
+            run: composer i
+          - name: Run coding standards check
+            run: composer run psalm
+  phpstan:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout

composer.json

@@ -33,6 +33,7 @@
 		"lint": "parallel-lint --exclude src --exclude vendor --exclude target --exclude build .",
 		"cs:check": "php-cs-fixer fix --dry-run --diff",
 		"cs:fix": "php-cs-fixer fix",
-		"psalm": "psalm.phar"
+		"psalm": "psalm.phar",
+		"phpstan": "phpstan analyse --level 5 src"
 	}
 }