From the github issue, https://github.com/gcovr/gcovr/issues/1242

gcovr runs twice instead of once.

gcovr --json # output is json
gcovr-fix-paths.py
gcovr -a fixed-paths.json  # input is json
lcov-jenkins-gcc-13.sh slightly changes.
The python script step should be as limited as possible. fixing the file paths.

@julioest