ci: Limit depth of subprojects when cloning
Use the depth= argument from Meson 0.52 to limit the clone depth of subprojects to 1. This should make the CI images a little smaller, and reduce the bandwidth required to build them.
Use the depth= argument from Meson 0.52 to limit the clone depth of subprojects to 1. This should make the CI images a little smaller, and reduce the bandwidth required to build them.