Update dependencies and code style

Author: kelunik

.gitignore

@@ -3,4 +3,5 @@
 /info/
 /vendor/
 /config.test.yml
-/.php_cs.cache
+/.php_cs.cache
+/.phpunit.result.cache

.php_cs.dist

@@ -1,40 +1,10 @@
 <?php
 
-return PhpCsFixer\Config::create()
-    ->setRiskyAllowed(true)
-    ->setRules([
-        "@PSR1" => true,
-        "@PSR2" => true,
-        "braces" => [
-            "allow_single_line_closure" => true,
-            "position_after_functions_and_oop_constructs" => "same",
-        ],
-        "array_syntax" => ["syntax" => "short"],
-        "cast_spaces" => true,
-        "combine_consecutive_unsets" => true,
-        "function_to_constant" => true,
-        "native_function_invocation" => true,
-        "no_multiline_whitespace_before_semicolons" => true,
-        "no_unused_imports" => true,
-        "no_useless_else" => true,
-        "no_useless_return" => true,
-        "no_whitespace_before_comma_in_array" => true,
-        "no_whitespace_in_blank_line" => true,
-        "non_printable_character" => true,
-        "normalize_index_brace" => true,
-        "ordered_imports" => true,
-        "php_unit_construct" => true,
-        "php_unit_dedicate_assert" => true,
-        "php_unit_fqcn_annotation" => true,
-        "phpdoc_summary" => true,
-        "phpdoc_types" => true,
-        "psr4" => true,
-        "return_type_declaration" => ["space_before" => "none"],
-        "short_scalar_cast" => true,
-        "single_blank_line_before_namespace" => true,
-    ])
-    ->setFinder(
-        PhpCsFixer\Finder::create()
-            ->in(__DIR__ . "/src")
-            ->in(__DIR__ . "/test")
-    );
+$config = new Amp\CodeStyle\Config;
+$config->getFinder()
+    ->in(__DIR__ . '/src')
+    ->in(__DIR__ . '/test');
+
+$config->setCacheFile(__DIR__ . '/.php_cs.cache');
+
+return $config;

.travis.yml

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015-2018 Niklas Keller
+Copyright (c) 2015-2021 Niklas Keller
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

LICENSE

@@ -11,21 +11,22 @@
         "tls"
     ],
     "require": {
-        "php": ">=7",
+        "php": ">=7.2",
         "ext-openssl": "*",
-        "amphp/process": "^0.3.3",
-        "amphp/parallel": "^0.2.5",
-        "kelunik/acme": "^0.5",
+        "amphp/process": "^1.1",
+        "amphp/parallel": "^v1.4",
+        "kelunik/acme": "^1-dev",
         "kelunik/certificate": "^1",
-        "league/climate": "^3.2",
-        "rdlowrey/auryn": "^1.4.2",
-        "webmozart/assert": "^1.2",
-        "symfony/yaml": "^3.0",
-        "amphp/log": "^1.0"
+        "league/climate": "^3.4",
+        "rdlowrey/auryn": "^1.4.4",
+        "webmozart/assert": "^1.3",
+        "symfony/yaml": "^5.3.2",
+        "amphp/log": "^1.0",
+        "ext-posix": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6",
-        "friendsofphp/php-cs-fixer": "^2.9",
+        "phpunit/phpunit": "^8 || ^9",
+        "amphp/php-cs-fixer-config": "dev-master",
         "macfja/phar-builder": "^0.2.6"
     },
     "license": "MIT",
@@ -45,15 +46,19 @@
     },
     "config": {
         "platform": {
-            "php": "7.0.0"
+            "php": "7.2.5"
         }
     },
     "extra": {
         "phar-builder": {
             "compression": "GZip",
             "name": "acme-client.phar",
             "output-dir": "build",
-            "include": ["info", "src", "vendor/kelunik/acme/res"],
+            "include": [
+                "info",
+                "src",
+                "vendor/kelunik/acme/res"
+            ],
             "include-dev": false,
             "skip-shebang": false,
             "entry-point": "bin/acme",