Merge pull request #76 from slimphp/dependabot/composer/slim/psr7-tw-1.5

Update slim/psr7 requirement from ^1.3.0 to ^1.5

Author: l0gicgate

composer.json

@@ -29,7 +29,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5.10",
-        "slim/psr7": "^1.3.0",
+        "slim/psr7": "^1.5",
         "squizlabs/php_codesniffer": "^3.6"
     },
     "scripts": {