[infra] Fix InfraTests recipe for other repos which use it

Change-Id: I7cd2163d316ed3b4575c7d3d05f6704c13cc46a5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/374258
Reviewed-by: Weston Tracey <westont@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
3 files changed