SA build - do not test lowest dependencies

Author: ondrejmirtes

.github/workflows/build.yml

@@ -128,9 +128,6 @@ jobs:
           - "7.4"
           - "8.0"
           - "8.1"
-        dependencies:
-          - "lowest"
-          - "highest"
 
     steps:
       - name: "Checkout"
@@ -148,12 +145,7 @@ jobs:
         if: matrix.php-version == '7.2' || matrix.php-version == '7.3'
         run: "composer require --dev phpunit/phpunit:^7.5.20 --no-update --update-with-dependencies"
 
-      - name: "Install lowest dependencies"
-        if: ${{ matrix.dependencies == 'lowest' }}
-        run: "composer update --prefer-lowest --no-interaction --no-progress"
-
-      - name: "Install highest dependencies"
-        if: ${{ matrix.dependencies == 'highest' }}
+      - name: "Install dependencies"
         run: "composer update --no-interaction --no-progress"
 
       - name: "PHPStan"