Change composer.json

As part of the PDS Interop-wide PHP project updates:

- Remove unneeded platform config
- Set minimum PHP version to PHP 7.3 (but lower than PHP8, see pdsinterop/php-solid-auth#19)
- Update package to more recent versions
- Contrain PDS Interop packages to version rather than dev-main
- Pin lcobucci/jwt to 3.3.3
- Pin PHPUnit to v8 and v9

Author: Potherca

composer.json

@@ -6,38 +6,34 @@
     },
     "config": {
         "bin-dir": "./bin",
-        "platform": {
-            "php": "7.3",
-            "ext-dom": "0.0.0",
-            "ext-mbstring": "0.0.0"
-        },
         "sort-packages": true
     },
     "description": "Standalone Solid Server written in PHP by PDS Interop.",
     "license": "MIT",
     "name": "pdsinterop/solid-server",
     "require": {
-        "php": "~7.1",
+        "php": "^7.3",
+        "ext-dom": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
         "ext-openssl": "*",
-        "codercat/jwk-to-pem": "^1.0",
-        "defuse/php-encryption": "^2.2",
-        "laminas/laminas-diactoros": " ^2.3",
-        "laminas/laminas-httphandlerrunner": "^1.2",
+        "codercat/jwk-to-pem": "^1.1",
+        "defuse/php-encryption": "^2.3",
+        "laminas/laminas-diactoros": " ^2.8",
+        "laminas/laminas-httphandlerrunner": "^1.5",
         "lcobucci/jwt": "3.3.3",
-        "league/container": "^3.3",
-        "league/flysystem": "^1.0.",
-        "league/oauth2-server": "8.1",
+        "league/container": "^3.4",
+        "league/flysystem": "^1.1",
+        "league/oauth2-server": "^8.1",
         "league/route": "^4.5",
-        "pdsinterop/flysystem-rdf": "dev-main",
-        "pdsinterop/solid-auth": "dev-main",
-        "pdsinterop/solid-crud": "dev-main",
-        "php-http/httplug": "^2.1",
-        "phptal/phptal": "^1.4"
+        "pdsinterop/flysystem-rdf": "^0.3",
+        "pdsinterop/solid-auth": "^0.6",
+        "pdsinterop/solid-crud": "^0.3",
+        "php-http/httplug": "^2.2",
+        "phptal/phptal": "^1.5"
     },
     "require-dev": {
-        "phpunit/phpunit": "*"
+        "phpunit/phpunit": "^8.5 | ^9.5"
     },
     "scripts": {
         "lint":"",