Unable to install pgAdmin 4 in ubuntu 21.10

I am facing some issues when I tried to install pgAdmin4 in the latest ubuntu version 21.10.

I have Installed the public key for the repository using following command

sudo curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add

But when I tried to create the repository configuration file using the following command I am getting an error mentioned below.

sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update'

ERROR LOG

  404  Not Found [IP: 2604:1380:2000:7501::69 443]
Hit:11 http://us.archive.ubuntu.com/ubuntu impish-backports InRelease
Get:12 http://us.archive.ubuntu.com/ubuntu impish-updates/main amd64 DEP-11 Metadata [7,972 B]
Get:13 http://us.archive.ubuntu.com/ubuntu impish-updates/universe amd64 DEP-11 Metadata [2,008 B]
Reading package lists... Done       
E: The repository 'https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/impish pgadmin4 Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Thank you.

from Recent Questions - Stack Overflow https://ift.tt/3bmeIfR
https://ift.tt/eA8V8J