switch to openpgp and ubuntu keyservers

[dvdherron]

Steps to test/reproduce

• running docker-compose build or (reopen in container in VSCode) with the old keyservers fails
• doing the same with the updated keyservers should succeed

Context: nodejs/docker-node#1500 (comment)

[jerivas]

Fix broken keyservers

[jerivas]

Thanks @dvdherron, I was able to reproduce the issue and your fix does indeed solve it. I actually think SFDO will want to take a look at this for security. Would you like to open an upstream PR?

(Happy to open the PR myself if you prefer, it just felt more appropriate for you to be the PR author since you're the committer)

[dvdherron]

Thanks @dvdherron, I was able to reproduce the issue and your fix does indeed solve it. I actually think SFDO will want to take a look at this for security. Would you like to open an upstream PR?

(Happy to open the PR myself if you prefer, it just felt more appropriate for you to be the PR author since you're the committer)

@jerivas done: SFDO-Tooling#2947
Let me know if anything looks weird.

[jerivas]

@dvdherron looks good! I suggest drawing attention to the fact that docker builds are currently broken without this to make the severity clear.