Remove 8.1 nightly build for now

Author: Seldaek

.github/workflows/continuous-integration.yml

@@ -6,7 +6,6 @@ on:
 
 env:
   COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --prefer-dist"
-  SYMFONY_PHPUNIT_REMOVE_RETURN_TYPEHINT: "1"
 
 jobs:
   tests:
@@ -27,7 +26,8 @@ jobs:
           - "7.3"
           - "7.4"
           - "8.0"
-          - "8.1"
+          # disabled for now as it leads to PHPUnit installing in a very old 4.3 version due to phpspec/prophecy not allowing 8.1
+          # - "8.1"
 
     steps:
       - name: "Checkout"

.github/workflows/phpstan.yml

@@ -6,7 +6,6 @@ on:
 
 env:
   COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --prefer-dist"
-  SYMFONY_PHPUNIT_VERSION: ""
 
 jobs:
   tests: