Fix build error with lowest deps on php7.4

.github/workflows/continuous-integration.yml

@@ -152,6 +152,10 @@ jobs:
       - name: "Change dependencies"
         run: "composer require --no-update --no-interaction --dev elasticsearch/elasticsearch:^${{ matrix.es-version }}"
 
+      - name: "Allow composer plugin to run"
+        if: "matrix.php-version == '7.4' && matrix.dependencies == 'lowest'"
+        run: "composer config allow-plugins.ocramius/package-versions true"
+
       - name: "Update dependencies with composer"
         uses: "ramsey/composer-install@v1"
         with:
@@ -229,6 +233,10 @@ jobs:
           composer remove --no-update --dev graylog2/gelf-php ruflin/elastica elasticsearch/elasticsearch rollbar/rollbar
           composer require --no-update --no-interaction --dev elasticsearch/elasticsearch:^8
 
+      - name: "Allow composer plugin to run"
+        if: "matrix.php-version == '7.4' && matrix.dependencies == 'lowest'"
+        run: "composer config allow-plugins.ocramius/package-versions true"
+
       - name: "Update dependencies with composer"
         uses: "ramsey/composer-install@v1"
         with: