Add optional environment variables for TRACE_DB_*

k8s/mev-inspect/templates/deployment.yaml

@@ -55,6 +55,24 @@ spec:
               secretKeyRef:
                 name: mev-inspect-db-credentials
                 key: password
+          - name: TRACE_DB_HOST
+            valueFrom:
+              secretKeyRef:
+                name: trace-db-credentials
+                key: host
+                optional: true
+          - name: TRACE_DB_USER
+            valueFrom:
+              secretKeyRef:
+                name: trace-db-credentials
+                key: username
+                optional: true
+          - name: TRACE_DB_PASSWORD
+            valueFrom:
+              secretKeyRef:
+                name: trace-db-credentials
+                key: password
+                optional: true
           - name: RPC_URL
             valueFrom:
               configMapKeyRef: