Bazel: Fix testonly value in BUILD file
Bazel: Fix testonly value in BUILD file

According to the documentation [1], the expected values for testonly
are True and False. Replace the currently used "1" with "True".

[1] https://docs.bazel.build/versions/master/be/common-definitions.html

Change-Id: I824b91afc5cd7e379c1f303464d4342a3b2df014

GerritCodeReview/plugins_replication,qtproject/qtqa-gerrit-plugin-replication