ci/lava: colors mangled in output
Errors from dEQP get reported like:
2021-10-14T17:47:24.156709 [0m[0m[31mERROR - gtest error: /libdrm/share/libdrm/amdgpu.ids: No such file or directory
where the escape codes for colors have been mangled, making the logs much harder to read from LAVA than bare-metal.