feat(FUTURE): terse lockfile (v4)

[dsherret]

This changes the lockfile to not store versions/version ranges in the npm and jsr package dependencies except when there are duplicate dependencies in the lockfile. This makes it incredibly easy to see when there are duplicate dependencies being used.

• More info: Reduce verbosity when a single version changes deno_lockfile#19 Lockfile v4 #23213
• feat: terse lockfile deno_lockfile#26

1. Flattens fields to the top level
2. Doesn't serialize the "remote" field when it's empty
3. Switches to an array for dependencies for jsr and npm pkgs where it doesn't contain versions unless there's a duplicate dependency in the lockfile.

Example: jsr-io/jsr@453e253

At the moment, this is only behind the DENO_FUTURE=1 environment variable so that we can get feedback on it and find issues.

Closes #23213

[bartlomieju]

LGTM, no comments