[task scheduler] Use filepath instead of path in specs
[task scheduler] Use filepath instead of path in specs

Change-Id: Ia9e8a3f070258c0544056a05918d66bb39b5ce93
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/310076
Reviewed-by: Weston Tracey <e7e27cb74e46abd7b999223aa4f27901ab7e58c6@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot