[release-libraries] silently keeps library non-published if LIBPATCH is too high (it needs to be consecutive)

[taurus-forever]

Bug Description

HI,

The release-libraries silently keeps library non-published if LIBPATCH is too high due to human mistake
(e.g. the latest published LIBPATCH is 3 and the currently committed is 5):

> charmcraft publish-lib charms.mongodb.v0.mongodb_tls
Library charms.mongodb.v0.mongodb_tls has a wrong LIBPATCH number, 
it's too high and needs to be consecutive, Charmhub highest version is 0.3.                                                                                                                                    

> echo $?
0

Charmhub enforces LIBPATCH needs to be consecutive. Unfortunately exit code there is zero, so it is silently missing.

To Reproduce

1. bump LIBPATCH on 2+ versions to the current
2. try to publish new library

Environment

charmhub 2.2.0
charming-actions 2.2.2

Relevant log output

> charmcraft publish-lib charms.mongodb.v0.mongodb_tls
Library charms.mongodb.v0.mongodb_tls has a wrong LIBPATCH number, it's too high and needs to be consecutive, Charmhub highest version is 0.3.                                                                                                                                    

> echo $?
0

Additional context

No response