Fix Composer usage in CI

> You are using the deprecated option "--no-suggest". It has no effect and will break in Composer 3.
> No lock file found. Updating dependencies instead of installing from lock file. Use composer update over composer install if you do not have a lock file.

Author: szepeviktor

.github/workflows/pr.yml

@@ -32,8 +32,8 @@ jobs:
             ~/.composer/cache
           key: "php-${{ matrix.php-version }}-locked"
           restore-keys: "php-${{ matrix.php-version }}-locked"
-      - name: "Install locked dependencies"
-        run: "composer install --no-interaction --no-progress --no-suggest"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress"
       - name: "Coding Standard"
         run: "vendor/bin/php-cs-fixer fix -vvv --dry-run --format=checkstyle | cs2pr"
 
@@ -63,8 +63,8 @@ jobs:
             ~/.composer/cache
           key: "php-${{ matrix.php-version }}-locked"
           restore-keys: "php-${{ matrix.php-version }}-locked"
-      - name: "Install locked dependencies"
-        run: "composer install --no-interaction --no-progress --no-suggest"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress"
       - name: "Run Psalm"
         run: "vendor/bin/psalm  --output-format=github --shepherd --stats"
 
@@ -100,12 +100,12 @@ jobs:
           restore-keys: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
       - name: "Install lowest dependencies"
         if: ${{ matrix.dependencies == 'lowest' }}
-        run: "composer update --prefer-lowest --no-interaction --no-progress --no-suggest --ignore-platform-reqs"
+        run: "composer update --prefer-lowest --no-interaction --no-progress --ignore-platform-reqs"
       - name: "Install highest dependencies"
         if: ${{ matrix.dependencies == 'highest' }}
-        run: "composer update --no-interaction --no-progress --no-suggest --ignore-platform-reqs"
+        run: "composer update --no-interaction --no-progress --ignore-platform-reqs"
       - name: "Install locked dependencies"
         if: ${{ matrix.dependencies == 'locked' }}
-        run: "composer install --no-interaction --no-progress --no-suggest --ignore-platform-reqs"
+        run: "composer install --no-interaction --no-progress --ignore-platform-reqs"
       - name: "Run PHPUnit"
         run: "vendor/bin/phpunit --testdox --coverage-text"