pls update mongodb repo on bbb-install.sh

[Der-Sysop]

bbb-install.sh script causes apt update erros for mongodb because debian/ubunut repos now require signed= by inside the repo file

the current install script uploads a mongodb repo which causes apt update errors:
W: GPG error: https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 656408E390CFB1F5
E: The repository 'https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 InRelease' is no longer signed.

the repo should look like

/etc/apt/sources.list.d/mongodb-org-4.4.list

deb [ arch=amd64 signed-by=/etc/apt/trusted.gpg.d/mongodb.asc ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse

maybe update the bbb-install.sh script

bbb-install.sh :314

from:
echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
to:
wget -O /etc/apt/trusted.gpg.d/mongodb.asc https://pgp.mongodb.com/server-4.4.asc && echo "deb [ arch=amd64 signed-by=/etc/apt/trusted.gpg.d/mongodb.asc ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list

and maybe changing this somehow too

bbb-install.sh :311 to 313

if ! apt-key list MongoDB | grep -q 4.4; then
  wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
fi