fix: cleanup regex

[privatenumber]

Problem

• The regular expression was not bound to the start and end of the string, and therefore could match a subset
• The regular expression had many unnecessary capture groups and syntax ({0,1} instead of ?) ((\/|:) instead of [\:])
• .git should be escaped: \.git

Changes

Improved regular expression syntax by:

• Adding start and end bounds so that it matches the full string
• Removed unnecessary capture groups
• Escaped .

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@IonicaBizau the base branch is within my fork but would like to get this in upstream

[benjdlambert]

@privatenumber can you raise this PR with the upstream library? 🙏

[privatenumber]

It's already open: IonicaBizau#59

[benjdlambert]

Apologies - sorry got super confused 👍