ci/lava: Fix mangled LAVA outputs
LAVA is mangling the escape codes from ANSI during log fetching from the target device, making the colored lines and Gitlab sections from deqp, for example, to not work, inputting noise into the log.
This commit makes the most straightforward fix which is to replace the mangled characters to the fixed ones.
This approach is error-prone since it may unwittingly replace a genuine log that resembles the mangled escape code. But this solution should suffice until we get a proper fix from LAVA developers itself.
Edited by Guilherme Gallo