Bug 1501641 [wpt PR 13700] - Update mozprofile to 2.1.0, a=testonly

Automatic update from web-platform-testsUpdate mozprofile from 2.0.0 to 2.1.0 (#13700)

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wpt-commits: 2e05acd3f2da01b6bf08fb4f1adee3bed06e5ccf
wpt-pr: 13700

testing/web-platform/tests/tools/wptrunner/requirements_firefox.txt

@@ -1,5 +1,5 @@
 marionette_driver==2.7.0
-mozprofile==2.0.0
+mozprofile==2.1.0
 mozprocess == 0.26
 mozcrash == 1.0
 mozrunner==7.1.0