Roll src/third_party/catapult/ 8f31b02e7..2b7a13d86 (1 commit).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/8f31b02e7cdf..2b7a13d86594

$ git log 8f31b02e7..2b7a13d86 --date=short --no-merges --format='%ad %ae %s'

TBR=catapult-sheriff@chromium.org

Review-Url: https://codereview.chromium.org/2044663002
Cr-Commit-Position: refs/heads/master@{#398139}

DEPS

@@ -96,7 +96,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
-  'catapult_revision': '8f31b02e7cdfb48c1376999ff755d42e8ab0fba0',
+  'catapult_revision': '2b7a13d865940809a3dc68f58c9b17f4501a1489',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.