add database backup with admin commands

Signed-off-by: Jason Volk <jason@zemos.net>

Cargo.lock

@@ -355,6 +355,15 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
 
+[[package]]
+name = "chrono"
+version = "0.4.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eaf5903dcbc0a39312feb77df2ff4c76387d591b9fc7b04a238dcf8bb62639a"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "clang-sys"
 version = "1.7.0"
@@ -421,6 +430,7 @@ dependencies = [
  "axum-server-dual-protocol",
  "base64 0.22.0",
  "bytes",
+ "chrono",
  "clap",
  "cyborgtime",
  "either",