fix: upgrade lambda runtime version from using 18 (EoL) to 20 (#936)

Author: weklund

packages/cdk-graph-plugin-threat-composer/test/__snapshots__/plugin-integ.test.ts.snap

@@ -197,7 +197,7 @@ export class ApiLayer extends Construct {
     this.helloHandler = new lambda.Function(this, "HelloHandler", {
       code: lambda.Code.fromInline('module.exports.handler = () => "hello";'),
       handler: "index.handler",
-      runtime: lambda.Runtime.NODEJS_18_X,
+      runtime: lambda.Runtime.NODEJS_20_X,
       environment: {
         BUCKET: props.bucket.bucketName,
         DB: props.db.instanceArn,
@@ -211,7 +211,7 @@ export class ApiLayer extends Construct {
     this.worldHandler = new lambda.Function(this, "WorldHandler", {
       code: lambda.Code.fromInline('module.exports.handler = () => "world";'),
       handler: "index.handler",
-      runtime: lambda.Runtime.NODEJS_18_X,
+      runtime: lambda.Runtime.NODEJS_20_X,
     });
     world.addMethod("GET", new apigateway.LambdaIntegration(this.worldHandler));
   }
@@ -235,7 +235,7 @@ export class Website extends Construct {
         'module.exports.handler = () => "do something to provide config";'
       ),
       handler: "index.handler",
-      runtime: lambda.Runtime.NODEJS_14_X,
+      runtime: lambda.Runtime.NODEJS_20_X,
       environment: {
         BUCKET_ARN: this.sourceBucket.bucketArn,
         BUCKET_NAME: this.sourceBucket.bucketName,
@@ -291,7 +291,7 @@ export class EdgeCases extends Construct {
     new lambda.Function(this, "LambdaWithAlias", {
       code: lambda.Code.fromInline('module.exports.handler = () => "foobar";'),
       handler: "index.handler",
-      runtime: lambda.Runtime.NODEJS_14_X,
+      runtime: lambda.Runtime.NODEJS_20_X,
     }).addAlias("Test");
 
     // External (imported) resources

packages/cdk-graph/test/__fixtures__/constructs.ts

@@ -63,7 +63,7 @@ export class DependentFixtureStack extends Stack {
     this.lambda = new lambda.Function(nestedStack, "LambdaFunction", {
       code: lambda.Code.fromInline('module.console.log("test")'),
       handler: "index.handler",
-      runtime: lambda.Runtime.NODEJS_14_X,
+      runtime: lambda.Runtime.NODEJS_20_X,
       environment: {
         BUCKET_ARN: props.depStack.dataLayer.bucket.bucketArn,
         BUCKET_NAME: props.depStack.dataLayer.bucket.bucketName,

packages/cdk-graph/test/__fixtures__/stacks.ts

@@ -182,7 +182,7 @@ export class CloudfrontWebAcl extends Construct {
         role: onEventHandlerRole,
         functionName: onEventHandlerName,
         handler: "index.onEvent",
-        runtime: Runtime.NODEJS_18_X,
+        runtime: Runtime.NODEJS_20_X,
         timeout: Duration.seconds(300),
       }
     );

packages/static-website/src/cloudfront-web-acl.ts

@@ -240,7 +240,7 @@ export class TypeSafeRestApi extends Construct {
     // Create a custom resource for preparing the spec for deployment (adding integrations, authorizers, etc)
     const prepareSpec = new LambdaFunction(this, "PrepareSpecHandler", {
       handler: "index.handler",
-      runtime: Runtime.NODEJS_18_X,
+      runtime: Runtime.NODEJS_20_X,
       code: Code.fromAsset(
         path.join(__dirname, "./prepare-spec-event-handler")
       ),