feat: Add vpc to all lambdas, allow users to self manage install bucket assets

[sydefz]

Description of changes:

This PR

• Adds vpc to all lambdas to enhance security (without it the lambda will run on lambda vpc which has access to public internet)
• Adds a selfManageInstallationBucketAssets prop to allow self management on druid installation assets (scripts, extension and druid image etc)

The changes is tested on

• A existing ec2 stack, the lambdas are updated to use the correct vpc, and bucketDeployment are correctly disabled by turning on selfManageInstallationBucketAssets

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