Gradle create fix pull request

[eranturgeman]

• All tests passed. If this feature is not already covered by the tests, I added new tests.
• This pull request is on the dev branch.
• I used gofmt for formatting the code before submitting the pull request.

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'create-fix-pull-request' for Gradle projects is now supported!
Frogbot currently supports fixing the following for Gradle projects:

• fixing direct dependency written in a string format (i.e. "groupName:packageName:packageVersion...") for groovy and kotlin build files
• fixing direct dependency written in a map format (i.e. "group: groupName, name: packageName, version: packageVersion ...") for groovy and kotlin build files
• fixing dependencies for a multi-module project

Frogbot currently doesn't support the following for Gradle projects:

• versions: latest (version = latest.release), range version ( [3.4, 4.7) ), dynamic version (4.+)
• versions derived from variables
• versions derived from other projects/ scripts/ files/ plugins

[github-actions]

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