[RELEASE] add bkctl package to release scripts
[RELEASE] add bkctl package to release scripts


Descriptions of the changes in this PR:


*Motivation*

starting from bookkeeper 4.9.0, a separate tool package `bkctl` is released.

*Modifications*

add bkctl into release scripts




Reviewers: Enrico Olivelli <eolivelli@gmail.com>

This closes #1907 from sijie/include_bkctl_package
sijie/bookkeeper,apache/bookkeeper,sijie/bookkeeper,apache/bookkeeper,sijie/bookkeeper,sijie/bookkeeper,sijie/bookkeeper,apache/bookkeeper,apache/bookkeeper,sijie/bookkeeper,apache/bookkeeper,sijie/bookkeeper,apache/bookkeeper,sijie/bookkeeper