Adds env:passport command

[joedixon]

This PR adds a command to add Passport keys to the customer's environment file. Passport keys are too large to be stored directly in the environment, so this command is to be used only in conjunction with encrypted environment files.

The command will:

• Prompt the user to confirm they are using encrypted envs
• Check the .env.[ENV] file exists
• Check the Passport keys exist
• Attempt to parse the .env.[ENV] file
• Check Passport keys don't already exist
• Append the keys to the .env.[ENV] file
• Prompt the user to use env:encrypt and redeploy

[nunomaduro]

Good job. Can you elaborate on this will work for people using passports environment variables on secrets this moment?

[joedixon]

Good job. Can you elaborate on this will work for people using passports environment variables on secrets this moment?

Yes, if they're running Laravel 9 and using encrypted environment files, they can swap the passport keys from secrets to the env with this PR.

[taylorotwell]

@joedixon

"You should only use this command if when"... looks like needs some fixing in the message?

[joedixon]

@taylorotwell fixed in a subsequent commit (db61b44), but didn't update the screenshots