feat: add rollback policy to jd job (#191)

Author: ChrisAmora

.changeset/silent-suns-smoke.md

@@ -0,0 +1,5 @@
+---
+"@chainlink/job-distributor": patch
+---
+
+Add Rollback Policy to Job

job-distributor/v1/job/job.pb.go

@@ -66,6 +66,7 @@ message Job {
   google.protobuf.Timestamp updated_at = 6; // Timestamp when the job was last updated.
   google.protobuf.Timestamp deleted_at = 7; // Timestamp when the job was deleted, if applicable.
   repeated api.label.Label labels = 8; // Set of labels associated with the job.
+  string rollback_policy_id = 9; // ID of the rollback policy associated with this job.
 }
 
 // Proposal represents a job proposal.
@@ -216,6 +217,7 @@ message UpdateJobRequest {
     string uuid = 2 [deprecated = true];
   }
   repeated api.label.Label labels = 3; // Set of labels associated with the job.
+  string rollback_policy_id = 4; // ID of the rollback policy.
 }
 
 // UpdateJobResponse returns details of the updated job.