fix(gitbrowse): update BitBucket line range URL pattern

[krishna-bala]

Description

Fix the git browse functionality for bitbucket. See the following for reference:

https://support.atlassian.com/bitbucket-cloud/docs/hyperlink-to-source-code-in-bitbucket/

https://stackoverflow.com/questions/59743484/link-to-specific-lines-of-code-in-stash-bitbucket