Bug 1527448 [wpt PR 15351] - Update mozprofile to 2.2.0, a=testonly

Automatic update from web-platform-tests
Update mozprofile from 2.1.0 to 2.2.0 (#15351)

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wpt-commits: e98588d58730760258eee065fc9b6d5fc6e5512f
wpt-pr: 15351

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

@@ -1,5 +1,5 @@
 marionette_driver==2.7.0
-mozprofile==2.1.0
+mozprofile==2.2.0
 mozprocess==1.0.0
 mozcrash == 1.0
 mozrunner==7.3.0