Updated actions

Author: sebprt

.github/workflows/phpstan-6.yaml

@@ -1,7 +1,7 @@
 name: PHPStan level 6
 on: push
 jobs:
-  phpstan:
+  phpstan6:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3

.github/workflows/phpstan-7.yaml

@@ -1,7 +1,7 @@
 name: PHPStan level 7
 on: push
 jobs:
-  phpstan:
+  phpstan7:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3

.github/workflows/phpstan-8.yaml

@@ -1,7 +1,7 @@
 name: PHPStan level 8
 on: push
 jobs:
-  phpstan:
+  phpstan8:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3