minor plugin fixes due to interface changes and config updates

relayer_engine/deploy/k8s-testnet/common.json

@@ -7,6 +7,10 @@
     "host": "redis-master.default.svc.cluster.local",
     "tls": true
   },
+  "defaultWorkflowOptions": {
+    "maxRetries": 3
+  },
+  "wormholeRpc": "https://wormhole-v2-testnet-api.certus.one",
   "readinessPort": 2000,
   "numGuardians": 1,
   "supportedChains": [

relayer_engine/engine_config/devnet/common.json

@@ -1,7 +1,15 @@
 {
   "mode": "BOTH",
-  "logLevel": "debug",
-  "storeType": "InMemory",
+  "logLevel": "info",
+  "storeType": "Redis",
+  "redis": {
+    "port": 6379,
+    "host": "localhost"
+  },
+  "defaultWorkflowOptions": {
+    "maxRetries": 3
+  },
+  "wormholeRpc": "https://wormhole-v2-testnet-api.certus.one",
   "readinessPort": 2000,
   "numGuardians": 1,
   "supportedChains": [

relayer_engine/src/plugin/src/plugin.ts

@@ -256,7 +256,7 @@ export class GenericRelayerPlugin implements Plugin<WorkflowPayload> {
     coreRelayerVaa: ParsedVaaWithBytes,
     db: StagingAreaKeyLock,
     _providers: Providers
-  ): Promise<{ workflowData?: WorkflowPayload }> {
+  ): Promise<{ workflowData: WorkflowPayload } | undefined> {
     this.logger.debug(
       `Consuming event from chain ${
         coreRelayerVaa.emitterChain