Fix coding standard test + use default Nette CS test

Author: janbarasek

.github/workflows/coding-style.yml

@@ -0,0 +1,30 @@
+name: Coding Style
+
+on: [push, pull_request]
+
+jobs:
+  nette_cc:
+    name: Nette Code Checker
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: 7.4
+          coverage: none
+
+      - run: composer create-project nette/code-checker temp/code-checker ^3 --no-progress
+      - run: php temp/code-checker/code-checker --strict-types --no-progress
+
+  nette_cs:
+    name: Nette Coding Standard
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: 8.0
+          coverage: none
+
+      - run: composer create-project nette/coding-standard temp/coding-standard ^3 --no-progress --ignore-platform-reqs
+      - run: php temp/coding-standard/ecs check src

.github/workflows/main.yml

@@ -32,10 +32,5 @@ jobs:
     - name: The PHP Security Checker
       uses: symfonycorp/security-checker-action@v2
 
-    - name: Check coding standards
-      run: |
-        php temp/code-checker/code-checker --short-arrays --strict-types --fix --no-progress
-        php temp/coding-standard/ecs check src --config temp/coding-standard/coding-standard-php71.yml
-
     - name: Check PHPStan rules
       run: composer phpstan

composer.json

@@ -15,7 +15,6 @@
 		"phpstan/phpstan": "^0.12.52",
 		"tracy/tracy": "^2.8",
 		"phpstan/phpstan-nette": "^0.12.9",
-		"symplify/easy-coding-standard": "^7.2",
 		"spaze/phpstan-disallowed-calls": "^1.1"
 	},
 	"autoload": {