Upgrade phpunit

Co-authored-by: fqqdk <csaba.simon@emarsys.com>

Author: tillmannr

Dockerfile

@@ -0,0 +1,5 @@
+FROM php:8.0-apache
+
+ENV COMPOSER_ALLOW_SUPERUSER="1"
+RUN curl -Ss https://getcomposer.org/installer | php && \
+    mv composer.phar /usr/bin/composer

Makefile

@@ -21,7 +21,6 @@ build: ## build container
 
 up: ## run
 	docker-compose up -d
-	## $(DOCKER) run -d -v "$$PWD":/var/www/html/ --rm --name=$(CONTAINER) -h $(CONTAINER).ett.local $(CONTAINER)
 
 stop: ## stop container
 	docker-compose stop
@@ -30,7 +29,7 @@ restart: stop up  ## restart container and run
 
 ssh: sh  ## get a shell in the container (alias for sh)
 sh: ## get a shell in the container
-	@docker-compose exec web /bin/bash
+	docker-compose exec web /bin/bash
 
 logs: ## show logs
 	@docker-compose logs -f web

composer.json

@@ -15,14 +15,11 @@
     "require": {
         "guzzlehttp/guzzle": "~6.0",
         "emartech/escher": "1.*",
-        "php": "~7.0"
+        "php": ">=7.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "6.*",
-        "phpunit/php-timer": "1.0.8",
-        "silex/silex": "~2.0",
-        "emartech/php-test-helpers": "~0.1",
-        "fqqdk/packagist-publisher": "*"
+        "phpunit/phpunit": "9.*",
+        "silex/silex": "~2.0"
     },
     "authors": [
         {