chore(cdk): add ToolsDevelopment to assume test role

[imabhichow]

Issue #, if available:

Description of changes:

Stack S3ECPythonGithub
IAM Statement Changes
┌───┬────────────────────────────┬────────┬────────────────┬──────────────────────────────────────────────────────────┬───────────┐
│   │ Resource                   │ Effect │ Action         │ Principal                                                │ Condition │
├───┼────────────────────────────┼────────┼────────────────┼──────────────────────────────────────────────────────────┼───────────┤
│ + │ ${s3-github-test-role.Arn} │ Allow  │ sts:AssumeRole │ AWS:arn:aws:iam::${AWS::AccountId}:role/ToolsDevelopment │           │
└───┴────────────────────────────┴────────┴────────────────┴──────────────────────────────────────────────────────────┴───────────┘
(NOTE: There may be security-related changes not in this list. See https://github.com/aws/aws-cdk/issues/1299)

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[imabhichow]

Deployed the CDK Chages
cdk deploy --change-set-name=AssumeByToolsDevelopment