rag/knowledge-bases/features-examples/04-infrastructure fails to deploy (CDK)

[fulcrum-stelios-papadopoulos]

following the instructions in
https://github.com/aws-samples/amazon-bedrock-samples/tree/main/rag/knowledge-bases/features-examples/04-infrastructure/e2e_rag_using_bedrock_kb_cdk

fails with:

1:40:05 PM | CREATE_FAILED        | AWS::Lambda::LayerVersion                 | dependency_layer
Resource handler returned message: "Unzipped size must be smaller than 262144000 bytes (Service: AWSLambdaInternal; Status Code: 400; Error Code: Inv 
alidParameterValueException; Request ID: 83d6e95c-833f-4775-be86-6543bbc81a22; Proxy: null)" (RequestToken: 3c23ecd4-afac-5ba3-cea5-2013caf8f807, Han 
dlerErrorCode: GeneralServiceException)
1:40:05 PM | ROLLBACK_IN_PROGRESS | AWS::CloudFormation::Stack                | OpenSearchServerlessStack
The following resource(s) failed to create: [Collection, OSSProviderRoleF97A4499, OSSIndexCreationProviderLogsE5FAF344, DataAccessPolicy, dependencyl 
ayer10EAF76B, OSSLambdaRoleF799DD1D]. Rollback requested by user.
1:40:05 PM | ROLLBACK_IN_PROGRESS | AWS::CloudFormation::Stack                | OpenSearchServerlessStack
The following resource(s) failed to create: [Collection, OSSProviderRoleF97A4499, OSSIndexCreationProviderLogsE5FAF344, DataAccessPolicy, dependencyl 
ayer10EAF76B, OSSLambdaRoleF799DD1D]. Rollback requested by user.

I think the dependecy_layer.zip is too big.