fix phpunit version, start fixing js lints

Author: Dave MacFarlane

composer.json

@@ -21,7 +21,7 @@
     },
     "require-dev" : {
         "squizlabs/php_codesniffer" : "^3.5",
-        "phpunit/phpunit" : "^12.2",
+        "phpunit/phpunit" : "9.4.4",
         "phan/phan": "^5.0",
         "phpstan/phpstan": "^1.4",
         "slevomat/coding-standard": "^6.4",