Prepare peers db for future migration

.cargo/config

@@ -5,4 +5,6 @@ cn = "check --manifest-path neon/native/Cargo.toml"
 dex = "run --release --package duniter-dbex --"
 ta = "test --all"
 rr = "run --release --"
+uc = "update -p duniter-core"
+ug = "update -p duniter-gva"
 xtask = "run --package xtask --"