feat(server): add coordinator cannon rpcs

migrations/postgres/005_cannon.up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE cannon_location (
+  location_id SERIAL PRIMARY KEY,
+  create_time TIMESTAMPTZ NOT NULL DEFAULT now(),
+  update_time TIMESTAMPTZ NOT NULL DEFAULT now(),
+  network_id VARCHAR(256),
+  type VARCHAR(256),
+  value TEXT,
+  CONSTRAINT cannon_location_unique UNIQUE (network_id, type)
+);

migrations/postgres/005_cannon_down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS cannon_location;

pkg/proto/eth/v1/committee.proto

@@ -8,7 +8,7 @@ import "google/protobuf/wrappers.proto";
 
 option go_package = "github.com/ethpandaops/xatu/pkg/proto/eth/v1";
 
-// Committee is a set of validators that are assigned to a commitee for a given slot.
+// Committee is a set of validators that are assigned to a committee for a given slot.
 message Committee {
   google.protobuf.UInt64Value index = 1;
   google.protobuf.UInt64Value slot = 2;