[infra] RecreateSKPs and Bookmaker need the Git packages

Bug: skia:7833, skia:7050
Change-Id: I8272e4b0beaed2a56260546f4a599a4586c71792
Reviewed-on: https://skia-review.googlesource.com/123921
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
3 files changed