tbb-testsuite: fix the tor_bridge test
We are currently the bridge 83.212.101.3:6666 to test tor using a bridge.
However, we are getting a timeout error when using this bridge: http://xer3kgd5ygqr7n6i.onion/r/tbb-nightly-2018-11-18-Debian9.5-x86_64/tor-browser-linux64-tbb-nightly_ar.tar.xz.html#tor_bridge
We should see if this bridge can be fixed, or if we should find an other bridge to use for this test.
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