[DRE-maint] Bug#1053466: unicorn: Fails to build binary package again after successful build

[Gioele Barabucci]

Package: src:unicorn
Version: 6.1.0-2
Severity: minor
Tags: ftbfs patch
User: debian-qa at lists.debian.org
Usertags: qa-doublebuild

Dear maintainers,

due to files modified in d/rules, the `unicorn` package fails to build a 
binary-only package after a successful build.

```
dpkg-source: info: local changes detected, the modified files are:
  source_dir/GIT-VERSION-FILE
  source_dir/ext/unicorn_http/unicorn_http.c
  source_dir/lib/unicorn/version.rb
dpkg-source: error: aborting due to unexpected upstream changes, see 
/tmp/unicorn_6.1.0-2+salsaci+20231004+2.diff.Ltit1F
```

A patch to fix this issue is included in the following MR:
https://salsa.debian.org/ruby-team/unicorn/-/merge_requests/2

--
Gioele Barabucci