Welcome to HWS @QC
I can’t do that, cause I have not access to it.
The HWS Connect Steam Web API is handled by Valve and OpenAuth.
Those are secure middlemen nobody (should) has access to.
If you are using Google Chrome, I recommend to clear the Password Form Feature for HWS Connect, cause Chrome still injects the old password.
Or try as alternative to press CTRL + SHIFT + N to open a private browser tab. Then go to HWS Connect and type by hand your new password.
All I can suggest.