Laragon is amazing so i just tried to remove the heidi folder and it worked.
How to :Remove Laragon/bin/heidisql folder.
Done it should work with adminer by default.
if not :
https://www.adminer.org/ download adminer (it is single file) and move it to laragon/etc/apps/adminer folder.
on me it looks like : C:\laragon\etc\apps\adminer\index.php