scripts: Mark git repository as safe

Git will refuse to generate information for the report if the repository
is owned by a different user (root in the container vs the real owner
outside).

e.g:

Error generating human readable git reference: fatal: unsafe repository ('/cloud-hypervisor' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /cloud-hypervisor

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

scripts/run_metrics.sh

@@ -113,6 +113,9 @@ if [ -n "$test_filter" ]; then
     test_binary_args+=("--test-filter $test_filter")
 fi
 
+# Ensure that git commands can be run in this directory (for metrics report)
+git config --global --add safe.directory $PWD
+
 export RUST_BACKTRACE=1
 time target/$BUILD_TARGET/release/performance-metrics ${test_binary_args[*]}
 RES=$?