I tried to install MySQL Workbench on Ubuntu 24.04 LTS, and after following the steps from the official site, I can no longer run the sudo apt update command. Every time, the following error appears:

sudo apt update
Get:1 http://repo.mysql.com/apt/ubuntu jammy InRelease [20.2 kB]
Hit:2 https://download.docker.com/linux/ubuntu focal InRelease                                                                       
Hit:3 https://dl.google.com/linux/chrome/deb stable InRelease                                                                        
Hit:4 http://security.ubuntu.com/ubuntu jammy-security InRelease    
Hit:5 http://pe.archive.ubuntu.com/ubuntu jammy InRelease
Hit:6 http://pe.archive.ubuntu.com/ubuntu jammy-updates InRelease
Err:1 http://repo.mysql.com/apt/ubuntu jammy InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B7B3B788A8D3785C
Hit:7 http://pe.archive.ubuntu.com/ubuntu jammy-backports InRelease
Fetched 20.2 kB in 2s (11.7 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
16 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://repo.mysql.com/apt/ubuntu jammy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B7B3B788A8D3785C
W: Failed to fetch http://repo.mysql.com/apt/ubuntu/dists/jammy/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B7B3B788A8D3785C

I tried using the commands
sudo apt-key adv --keyserver keys.gnupg.net --recv-keys B7B3B788A8D3785C

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B7B3B788A8D3785C

I even tried downloading the public key directly and adding it to the APT keyring
wget -qO - https://repo.mysql.com/RPM-GPG-KEY-mysql | sudo gpg --dearmor -o /usr/share/keyrings/mysql-archive-keyring.gpg

echo "deb [signed-by=/usr/share/keyrings/mysql-archive-keyring.gpg] http://repo.mysql.com/apt/ubuntu/ noble mysql-8.0" | sudo tee /etc/apt/sources.list.d/mysql.list

I also tried running the command
gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys B7B3B788A8D3785C && rm /etc/apt/keyrings/mysql.gpg && gpg --output /etc/apt/keyrings/mysql.gpg --export B7B3B788A8D3785C

However, none of them worked. Every time I run sudo apt update, I receive the same error.

Could someone help me with this?