All 4 usages of the `maps.Keys` function from the
`golang.org/x/exp/maps` package can be refactored to a simpler
alternative. If we need it in the future, it is available in the
standard library since Go 1.23.
Implements tooling in `admin` that allows an operator to
administratively pause account/identifier pairs and unpause
whole accounts. This functionality mirrors the self-service
capabilities of the SFE, so that we can administratively intervene
in the pausing and unpausing process.
The new `pause-identifier` subcommand accepts a single form
of input, specified by the `-batch-file` flag. This expects a CSV
where each row is an accountID, identifierType, identifierValue
triple.
The new `unpause-account` subcommand accepts either a single
account ID with the `-account` flag, or a text file containing a list
of account IDs with the `-batch-file` flag.
Relates to https://github.com/letsencrypt/boulder/issues/7406
Fixes https://github.com/letsencrypt/boulder/issues/7618
Eng Zer Jun
Samantha Frank
Phil Porada