feat: add merge_master function with error handling and branch update logic#170

abuzarmahmood wants to merge 7 commits intomainabuzarmahmood/blech_github_bot:mainfrom

165-in-addition-to-updating-branch-before-making-edits-also-merge-mainmaster-to-make-sure-branch-is-up-to-dateabuzarmahmood/blech_github_bot:165-in-addition-to-updating-branch-before-making-edits-also-merge-mainmaster-to-make-sure-branch-is-up-to-dateCopy head branch name to clipboard