[CI] Log sanitizers output to stdout instead of log files

Summary:
This will allow to correlate the output with the running test timewise,
which can be helpful during debugging.

Test Plan:

./contrib/teamcity/build-configurations.py build-asan
./contrib/teamcity/build-configurations.py build-ubsan
./contrib/teamcity/build-configurations.py build-tsan

Reviewers: #bitcoin_abc, jasonbcox

Reviewed By: #bitcoin_abc, jasonbcox

Subscribers: jasonbcox

Differential Revision: https://reviews.bitcoinabc.org/D6767