Added transactional(rollback/commit) support to mssql_script module (#7976)
* Added transactional(rollback/commit) support to mssql_script module via optional boolean param 'transaction'
* Added changelog fragment
* Implemented PR Review comments by felixfontein
(cherry picked from commit beacd54b7b)
Co-authored-by: Udit Yadav <36297285+BlackHat786000@users.noreply.github.com>