Ensure php is loaded from the correct path

.devcontainer/devcontainer.json

@@ -9,5 +9,8 @@
         "msjsdiag.debugger-for-chrome",
         "neilbrayfield.php-docblocker"
     ],
+    "settings": {
+        "php.executablePath": null
+    },
     "postCreateCommand": "echo '* text=auto eol=lf' > $(git rev-parse --git-dir)/info/attributes"
 }