Path traversal in Git Sync delete and move jobs

A user who can create Git Sync provisioning jobs (the Editor role by default) could delete or move files outside the configured repository path with a job that references a resource whose source path contains ../ sequences (path traversal). With a local filesystem repository on versions before 13.0.4 and 13.1.1, this reached files on the Grafana host. Thanks to velvelvel for reporting this vulnerability to us via our vulnerability disclosure program.