chore(bedrock-alpha): fix failing Bedrock Agent integration tests

[aemada-aws]

Issue # (if applicable)

N/A

Reason for this change

Five Bedrock Agent integration tests in aws-bedrock-alpha are failing:

1. integ.action-group: CreateAgentActionGroupRequest caught an error. CodeInterpreter action cannot be specified for model anthropic.claude-3-5-sonnet-20241022-v2:0
2. integ.orchestration: ValidationError: Template format error: Unrecognized resource types: [AWS::Bedrock::Agent]
3. integ.memory: ValidationError: Template format error: Unrecognized resource types: [AWS::Bedrock::Agent]
4. integ.api-schema: ValidationError: Template format error: Unrecognized resource types: [AWS::Bedrock::Agent]
5. integ.agent-existing-role: ValidationError: Template format error: Unrecognized resource types: [AWS::Bedrock::Agent]

Root causes:

• Tests had no region constraints, causing deployment to regions that don't support the AWS::Bedrock::Agent CloudFormation resource type or the anthropic.claude-3-5-sonnet-20241022-v2:0 model.
• integ.action-group.ts enabled codeInterpreterEnabled: true which is incompatible with the anthropic.claude-3-5-sonnet-20241022-v2:0 model.

Description of changes

• Created shared integ-tests-regions.ts with a verified list of regions where both AWS::Bedrock::Agent CFN resource type and anthropic.claude-3-5-sonnet-20241022-v2:0 model are available. Regions verified via aws cloudformation describe-type and aws bedrock get-foundation-model.
• Added regions prop to all 5 IntegTest constructs to constrain deployment to supported regions.

Describe any new or updated permissions being added

N/A

Description of how you validated changes

All 5 integration tests pass:

cd packages/@aws-cdk/aws-bedrock-alpha
yarn integ \
  test/bedrock/agents/integ.action-group.js \
  test/bedrock/agents/integ.agent-existing-role.js \
  test/bedrock/agents/integ.api-schema.js \
  test/bedrock/agents/integ.memory.js \
  test/bedrock/agents/integ.orchestration.js \
  --disable-update-workflow \
  --update-on-failed \
  --force \
  --parallel-regions us-east-1 us-west-2 us-east-2 ap-northeast-1 ap-southeast-1 ap-southeast-2 ap-south-1 ap-northeast-2 ap-northeast-3 \
  --verbose

Result: Tests: 5 passed, 5 total

• integ.orchestration → us-east-1: SUCCESS
• integ.agent-existing-role → ap-northeast-1: SUCCESS
• integ.memory → us-west-2: SUCCESS
• integ.action-group → ap-southeast-1: SUCCESS
• integ.api-schema → us-east-2: SUCCESS

No tests skipped. No tests converted to unit tests.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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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

[github-actions]

⚠️ Experimental Feature: This security report is currently in experimental phase. Results may include false positives and the rules are being actively refined.
Please try merge from main to avoid findings unrelated to the PR.

---

	Tests	Passed ✅	Skipped	Failed
Security Guardian Results	48 ran	48 passed

Test	Result
No test annotations available

• View Security Guardian Results

[github-actions]

⚠️ Experimental Feature: This security report is currently in experimental phase. Results may include false positives and the rules are being actively refined.
Please try merge from main to avoid findings unrelated to the PR.

---

	Tests	Passed ✅	Skipped	Failed
Security Guardian Results with resolved templates	48 ran	48 passed

Test	Result
No test annotations available

• View Security Guardian Results with resolved templates