Run PHPUnit downgrade before composer install

Author: ruudk

.github/workflows/build.yml

@@ -36,12 +36,12 @@ jobs:
       - name: "Validate Composer"
         run: "composer validate"
 
-      - name: "Install dependencies"
-        run: "composer install --no-interaction --no-progress --no-suggest"
-
       - name: "Downgrade PHPUnit"
         if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
-        run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
+        run: "composer require --dev phpunit/phpunit:^7.5.20 --no-update --update-with-dependencies"
+
+      - name: "Install dependencies"
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Lint"
         run: "make lint"
@@ -100,6 +100,10 @@ jobs:
           coverage: "none"
           php-version: "${{ matrix.php-version }}"
 
+      - name: "Downgrade PHPUnit"
+        if: matrix.php-version == '7.1' || 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 --no-suggest"
@@ -108,10 +112,6 @@ jobs:
         if: ${{ matrix.dependencies == 'highest' }}
         run: "composer update --no-interaction --no-progress --no-suggest"
 
-      - name: "Downgrade PHPUnit"
-        if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
-        run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
-
       - name: "Tests"
         run: "make tests"
 
@@ -144,6 +144,10 @@ jobs:
           extensions: mbstring
           tools: composer:v2
 
+      - name: "Downgrade PHPUnit"
+        if: matrix.php-version == '7.1' || 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 --no-suggest"
@@ -152,9 +156,5 @@ jobs:
         if: ${{ matrix.dependencies == 'highest' }}
         run: "composer update --no-interaction --no-progress --no-suggest"
 
-      - name: "Downgrade PHPUnit"
-        if: matrix.php-version == '7.1' || matrix.php-version == '7.2' || matrix.php-version == '7.3'
-        run: "composer require --dev phpunit/phpunit:^7.5.20 --update-with-dependencies"
-
       - name: "PHPStan"
         run: "make phpstan"