This is part of the Reduce Package Size [project](https://github.com/aws/aws-cdk/projects/15). Assembly compression is supported in jsii v1.64.0 (see this jsii [PR](aws/jsii#3570) for details + discussion about how compressed assemblies are handled). This PR includes the following:

- `--compress-assembly` flag turned on for `aws-cdk-lib` only
- `run-rosetta.sh` depends on `cdk-generate-synthetic-examples@^0.1.14` which is the minimum version with compressed assembly [support](cdklabs/cdk-generate-synthetic-examples#16).

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This `--compress-assembly` flag was tested in the following way:

- this branch was pushed to `test-main-pipeline` and successfully built in the test pipeline.
- the build artifact was downloaded from s3, unzipped, and verified to have the correct `.jsii` and `.jsii.gz` structure in both TypeScript and Python.
- the build artifact was used to synth and deploy basic CDK apps in TypeScript and Python.
- the build artifact was privately published to a codeartifact repository.
- the codeartifact repository was used as a source to a local instance of construct hub.
- verified that the published library was ingested correctly by the ingestion lambda and shows up on construct hub.
- verified (via eye test, nothing too rigorous) that documentation was generated correctly on construct hub, including generated examples.

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On code artifact, the package size shows up as 54 MB, compared to 194 MB, which is the size of the current package in npm.

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### All Submissions:

* [ ] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

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


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### All Submissions:

* [ ] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

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