Pull request 2171: AG-28455 remove checkout

Squashed commit of the following:

commit 3b90850dae360878925a82a48eeb360ecf6c6969
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 13 15:34:11 2024 +0300

    version: sort version strings

commit 7a9cb73a2f6c3579e104745b5c31abdd9edc8e33
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 13 13:02:36 2024 +0300

    all: account candidate channel

commit 76d237412f17ddfdd09def97f13489a4fc98d641
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Mar 12 20:02:55 2024 +0300

    bamboo-specs: add todo

commit f99c726386a4a3ef322a32677a6c0a0e2dd6bbcc
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Mar 12 20:01:38 2024 +0300

    bamboo-specs: revert release

commit 70a3b3e93647ed9474e0679e6e2d91b4b06691d4
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Mar 12 19:58:20 2024 +0300

    bamboo-specs: rm explicit checkout

bamboo-specs/release.yaml

@@ -40,6 +40,8 @@
         'jobs':
           - 'Publish to GitHub Releases'
 
+# TODO(e.burkov):  In jobs below find out why the explicit checkout is
+# performed.
 'Build frontend':
     'docker':
         'image': '${bamboo.dockerGo}'

bamboo-specs/test.yaml

@@ -68,9 +68,6 @@
 
                 set -e -f -u -x
 
-                # Explicitly checkout the revision that we need.
-                git checkout "${bamboo.repository.revision.number}"
-
                 make\
                         ARCH="amd64"\
                         OS="windows darwin linux"\