Fix versioning discrepancy between sled-agent API and types crate

As it evolved, #9570 made various changes to both the sled-agent types
crate and the sled-agent API. As it landed, though, it made one
versioning bump to sled-agent API (v20 - BGP) and two to the types crate
(v20 - lockstep API, v21 - BGP). This squishes the latter two down to
just one (v20 - BGP) for consistency with the API's versioning.

Author: jgallagher

sled-agent/types/versions/src/bgp_v6/mod.rs

@@ -5,3 +5,4 @@
 //! Version `BGP_v6` of the Sled Agent API.
 
 pub mod early_networking;
+pub mod rack_init;

…ions/src/lockstep_rack_init/rack_init.rs …t/types/versions/src/bgp_v6/rack_init.rssled-agent/types/versions/src/lockstep_rack_init/rack_init.rs renamed to sled-agent/types/versions/src/bgp_v6/rack_init.rs sled-agent/types/versions/src/lockstep_rack_init/rack_init.rs renamed to sled-agent/types/versions/src/bgp_v6/rack_init.rs

@@ -53,8 +53,8 @@ pub mod disk {
 }
 
 pub mod early_networking {
-    pub use crate::v21::early_networking::EarlyNetworkConfig;
-    pub use crate::v21::early_networking::EarlyNetworkConfigBody;
+    pub use crate::v20::early_networking::EarlyNetworkConfig;
+    pub use crate::v20::early_networking::EarlyNetworkConfigBody;
 }
 
 pub mod firewall_rules {

sled-agent/types/versions/src/latest.rs

@@ -55,10 +55,8 @@ pub mod v17;
 pub mod v18;
 #[path = "add_rot_attestation/mod.rs"]
 pub mod v19;
-#[path = "lockstep_rack_init/mod.rs"]
-pub mod v20;
 #[path = "bgp_v6/mod.rs"]
-pub mod v21;
+pub mod v20;
 #[path = "add_switch_zone_operator_policy/mod.rs"]
 pub mod v3;
 #[path = "add_nexus_lockstep_port_to_inventory/mod.rs"]