Allow passing repeated options to git

[felipecrs]

This adds support for repeated options when using TaskOptions. Example:

git.push({ '--push-option': ["foo", "foo=bar", 123] });

Which would result in the following command:

git push --push-option=foo --push-option=foo=bar --push-option=123

Real use case: renovatebot/renovate#35900 (comment)

[changeset-bot]

🦋 Changeset detected

Latest commit: 9244518

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
simple-git	Minor

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