fix(custom-resources): AwsCustomResource assumed role session name may contain invalid characters (#34016)

### Issue # (if applicable)

Closes #23260

Also #34011 

### Reason for this change

According [to the documentation](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html), the `RoleSessionName` property for an `AssumeRole` operation may only contain upper- and lower-case alphanumeric characters with no spaces, underscores or any of the following characters: =,.@-

### Description of changes

Sanitize the role session name by removing all non-allowed symbols

### Describe any new or updated permissions being added

N/A

### Description of how you validated changes

- [x] Unit Test
- [x] Integration Test

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

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

Author: msessa

packages/@aws-cdk-testing/framework-integ/test/aws-elasticloadbalancingv2-actions/test/integ.cognito.js.snapshot/asset.cde607091ceabfbfb56e643cd4a5647680cfaf19c63f4d59b3f4880df4a71c8d/index.js renamed to packages/@aws-cdk-testing/framework-integ/test/aws-elasticloadbalancingv2-actions/test/integ.cognito.js.snapshot/asset.695130a6c8132c255e833e84e8482a4a144a4a1261c979bd7e3cb7b8258e8876/index.js

@@ -827,7 +827,7 @@
      "S3Bucket": {
       "Fn::Sub": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}"
      },
-     "S3Key": "cde607091ceabfbfb56e643cd4a5647680cfaf19c63f4d59b3f4880df4a71c8d.zip"
+     "S3Key": "695130a6c8132c255e833e84e8482a4a144a4a1261c979bd7e3cb7b8258e8876.zip"
     },
     "Handler": "index.handler",
     "Role": {