fix: typo in const name

Author: tstephen-nhs

packages/cdkConstructs/src/constructs/StateMachine/CatchAllErrorPass.ts

@@ -1,7 +1,7 @@
 import {Pass} from "aws-cdk-lib/aws-stepfunctions"
 import {Construct} from "constructs"
 
-const severErrorOperationOutcome = `{% $string(
+const errorOperationOutcome = `{% $string(
   {
     "ResourceType": "OperationOutcome",
     "meta": {
@@ -29,7 +29,7 @@ const severErrorOperationOutcome = `{% $string(
 /** Produces a fixed 500 FHIR OperationOutcome payload for unhandled workflow failures. */
 export class CatchAllErrorPass extends Construct {
   /** Pass state returned by this construct for chaining in state machine definitions. */
-  public readonly state
+  public readonly state: Pass
 
   /** Creates a terminal-style error response payload without exposing internal exception detail. */
   public constructor(scope: Construct, id: string) {
@@ -43,7 +43,7 @@ export class CatchAllErrorPass extends Construct {
             "Content-Type": "application/fhir+json",
             "Cache-Control": "no-cache"
           },
-          body: severErrorOperationOutcome
+          body: errorOperationOutcome
         }
       }
     })