Enhancement: query file changes associated with a given commit or pull request

[eskirk]

I would like to use the GitHub datasource to identify the "problematic commits" (the commit that potentially caused a new error to appear).

I am able to query for commits/PRs/releases - but those results do not include the files changed in that commit.

This enhancement would allow us to either:

• specifically query file changes by commit ID
• return file changes alongside the other data returned when querying by commit ID