Fix bug free psalm version

Author: jeckel

.travis.yml

@@ -31,7 +31,6 @@ script:
   - ./vendor/bin/phpcs
   - ./vendor/bin/psalm
   - if [ "$TRAVIS_PHP_VERSION" == "7.3" ]; then ./vendor/bin/phpunit --coverage-clover coverage.xml; else ./vendor/bin/phpunit; fi
-  - ls -la
 
 after_success:
   - if [ "$TRAVIS_PHP_VERSION" == "7.3" ]; then bash <(curl -s https://codecov.io/bash) -f coverage.xml; fi

composer.json

@@ -29,7 +29,7 @@
     "phpunit/phpunit": "^8.5 || ^9.5",
     "phpmd/phpmd": "^2.9",
     "squizlabs/php_codesniffer": "^3.5",
-    "vimeo/psalm": "^4.3",
+    "vimeo/psalm": "^4.3.1",
     "phpro/grumphp": "^0.19 || ^1.2.0"
   }
 }