feat: expand JD memory client functionality to match Job Distributor API

This expands the JD memory client functionality to match the Job
Distributor API, and updates the test suite.

Author: jkongie

.changeset/sour-years-clap.md

@@ -0,0 +1,5 @@
+---
+"chainlink-deployments-framework": minor
+---
+
+Improve JD Memory client to be aligned with the Job Distributor implementation

offchain/jd/memory/error.go

@@ -0,0 +1,18 @@
+package memory
+
+import (
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+func errNotFoundID(entityType string, id string) error {
+	return status.Errorf(codes.NotFound, "%s with id %s not found", entityType, id)
+}
+
+func errNilRequest() error {
+	return status.Error(codes.InvalidArgument, "request cannot be nil")
+}
+
+func errUUIDLookupNotSupported() error {
+	return status.Error(codes.InvalidArgument, "uuid lookup is deprecated and not supported by this implementation")
+}