ci: Fix git build info for checklist Workflow

[MichelZ]

Fixes #9592

Summary of Changes

This pull request introduces a change to the scripts/git_build_info.js file to enhance the build process by configuring the Git safe directory.

Build process improvement:

• scripts/git_build_info.js: Added a try block to set the Git safe directory to /external to avoid errors when running git commands outside of a git repository. This ensures the build process can proceed smoothly even in different environments.

Screenshots (if necessary)

References

Additional context

Execution of the Workflow "Build InGamePanels Chechlist Fix" is failing:
https://github.com/flybywiresim/aircraft/actions/runs/11999917978/job/33448395480#step:6:34

The issue is: "Git failed Error: Command failed: git rev-parse --abbrev-ref HEAD"

Executing the command manually in the container reveals the issue:

michelz@BEASTLI:/mnt/g/MIZE/dev/GitHub/flybywiresim-aircraft$ ./scripts/dev-env/run.sh git show-ref -s HEAD
fatal: detected dubious ownership in repository at '/external'
To add an exception for this directory, call:

        git config --global --add safe.directory /external

which is then fixed when using the mentioned command:

michelz@BEASTLI:/mnt/g/MIZE/dev/GitHub/flybywiresim-aircraft$ ./scripts/dev-env/run.sh git config --global --add safe.directory /external && git show-ref -s HEAD
33c4a62f9e8074ad140848c399072f46dd880c69

Testing instructions

• Execute the commands in the Workflow template, e.g.:

./scripts/dev-env/run.sh ./scripts/setup.sh --clean
./scripts/dev-env/run.sh ./scripts/build_ingamepanels_checklist_fix.sh --no-tty -j 4
./scripts/dev-env/run.sh node ./scripts/fragment-ingamepanels-checklist-fix.js

This will fail in master and will succeed in this PR branch

How to download the PR for QA

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