move to use psalm.phar, remove psalm.xml change warnings

composer.json

@@ -13,7 +13,7 @@
     "predis/predis": "^1.1",
     "psr/cache": "^1.0",
     "tedivm/stash": "^0.16",
-    "vimeo/psalm": "*",
+    "psalm/phar": "*",
     "phpstan/phpstan": "*"
   },
   "suggest": {
@@ -42,7 +42,7 @@
   },
   "scripts": {
     "build" : [ "@lint", "@check-format", "@psalm", "@phpstan", "@test" ],
-    "psalm" : "@php ./vendor/bin/psalm src",
+    "psalm" : "@php ./vendor/bin/psalm.phar src",
     "phpstan" : "@php vendor/bin/phpstan analyse --level 6 src",
     "lint": "@php ./vendor/bin/parallel-lint --exclude vendor/ .",
     "check-format": "@php ./vendor/bin/php-cs-fixer fix --ansi --dry-run --diff",

psalm.xml

@@ -3,6 +3,8 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config file:///home/david/src/RateLimit/vendor/vimeo/psalm/config.xsd"
+    findUnusedBaselineEntry="true"
+    findUnusedCode="false"
 >
     <projectFiles>
         <directory name="src/" />