fix(lambda): compute platform missing for autocreated profiling group (…

…#9716)

follow up fix to #9285

currently the lambda construct provides support for profiling group creation via a boolean prop. however, the profiling group creation doesn't set the ComputePlatform value which is required to profile in lambda compute environment.

this PR explicitly sets the ComputePlatform when defining the profiling group in the Function construct. 

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-lambda/lib/function.ts

@@ -1,5 +1,5 @@
 import * as cloudwatch from '@aws-cdk/aws-cloudwatch';
-import { IProfilingGroup, ProfilingGroup } from '@aws-cdk/aws-codeguruprofiler';
+import { IProfilingGroup, ProfilingGroup, ComputePlatform } from '@aws-cdk/aws-codeguruprofiler';
 import * as ec2 from '@aws-cdk/aws-ec2';
 import * as iam from '@aws-cdk/aws-iam';
 import * as logs from '@aws-cdk/aws-logs';
@@ -572,7 +572,9 @@ export class Function extends FunctionBase {
       };
     } else if (props.profiling) {
       this.validateProfilingEnvironmentVariables(props);
-      const profilingGroup = new ProfilingGroup(this, 'ProfilingGroup');
+      const profilingGroup = new ProfilingGroup(this, 'ProfilingGroup', {
+        computePlatform: ComputePlatform.AWS_LAMBDA,
+      });
       profilingGroup.grantPublish(this.role);
       profilingGroupEnvironmentVariables = {
         AWS_CODEGURU_PROFILER_GROUP_ARN: profilingGroup.profilingGroupArn,

packages/@aws-cdk/aws-lambda/test/test.function.ts

@@ -197,6 +197,7 @@ export = testCase({
 
     expect(stack).to(haveResource('AWS::CodeGuruProfiler::ProfilingGroup', {
       ProfilingGroupName: 'MyLambdaProfilingGroupC5B6CCD8',
+      ComputePlatform: 'AWSLambda',
     }));
 
     expect(stack).to(haveResource('AWS::IAM::Policy', {