vpython: new release 10e1d79ac9ced2b819221e06535f457093b2a14c.

Picks up hopeful workarounds for failure to remove virtual env:
https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/1876802
https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/1876638

R=bpastene

Bug: 869227
Change-Id: I9d46bb7579e747819d7d82cd3ad06968dd28e7d2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1876471Reviewed-by: Ben Pastene <bpastene@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708855}

tools/mb/mb.py

@@ -494,9 +494,9 @@ class MetaBuildWrapper(object):
       ('infra/tools/luci/logdog/butler/${platform}',
        'git_revision:e1abc57be62d198b5c2f487bfb2fa2d2eb0e867c'),
       ('infra/tools/luci/vpython-native/${platform}',
-       'git_revision:98a268c6432f18aedd55d62b9621765316dc2a16'),
+       'git_revision:10e1d79ac9ced2b819221e06535f457093b2a14c'),
       ('infra/tools/luci/vpython/${platform}',
-       'git_revision:98a268c6432f18aedd55d62b9621765316dc2a16'),
+       'git_revision:10e1d79ac9ced2b819221e06535f457093b2a14c'),
     ]
     for pkg, vers in cipd_packages:
       cmd.append('--cipd-package=.swarming_module:%s:%s' % (pkg, vers))