chore: add new style integration test snapshots (#19802)

The bulk of this PR is adding the new style integration test snapshots
that the new `integ-runner` uses. These are snapshots of the cloud
assembly and have folder names like `${testName}.integ.snapshot`.

Some other minor updates were made as part of this change.

1. Updated `integ-runner` to use `synthFast` instead of `synth` to speed
   up performance.
2. Make sure the `integ-runner` throws an exit code if any tests fail
3. Updated the test names to include the directory if running from a
   parent directory (i.e. `packages/@aws-cdk`).
4. Added the ability to exempt from the update workflow (update workflow
   is not yet implemented). If a test is exempt then the snapshot will
   not contain any assets. For now this is used for tests that include
   very large assets that would drastically increase the size of the
   repo.
5. Updated some custom resources to exclude `*.ts` files from the asset
   bundle. `.ts` files are already excluded when we publish (`.d.ts`
   files are not), and `.js` files are the only thing needed by the
   Lambda function anyway. This was causing issues when running a build
   because those files in the snapshot would cause `tsc` to fail.
    - Updated:
    `aws-events-targets/lib/aws-api.ts`
    `aws-redshift/lib/private/database-query.ts`
    `aws-stepfunctions-tasks/lib/evaluate-expression.ts`
    `custom-resources/lib/aws-custom-resource/aws-custom-resource.ts`
    `custom-resources/lib/provider-framework/provider.ts`


----

### All Submissions:

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

### Adding new Unconventional Dependencies:

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

### New Features

* [x] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/master/INTEGRATION_TESTS.md)?
	* [x] Did you use `cdk-integ` to deploy the infrastructure and generate the snapshot (i.e. `cdk-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*

Author: corymhall

packages/@aws-cdk/alexa-ask/.gitignore

@@ -14,4 +14,8 @@ tsconfig.json
 !.eslintrc.js
 !jest.config.js
 
-junit.xml
+junit.xml
+!**/*.integ.snapshot/**/asset.*/*.js
+!**/*.integ.snapshot/**/asset.*/*.d.ts
+
+!**/*.integ.snapshot/**/asset.*/**

packages/@aws-cdk/alexa-ask/.npmignore

@@ -28,4 +28,6 @@ jest.config.js
 **/cdk.out
 junit.xml
 test/
-!*.lit.ts
+!*.lit.ts
+**/*.integ.snapshot
+**/*.integ.snapshot

packages/@aws-cdk/app-delivery/.gitignore

@@ -12,4 +12,8 @@ coverage
 !.eslintrc.js
 
 junit.xml
-!jest.config.js
+!jest.config.js
+!**/*.integ.snapshot/**/asset.*/*.js
+!**/*.integ.snapshot/**/asset.*/*.d.ts
+
+!**/*.integ.snapshot/**/asset.*/**

packages/@aws-cdk/app-delivery/.npmignore

@@ -23,4 +23,6 @@ tsconfig.json
 junit.xml
 test/
 !*.lit.ts
-jest.config.js
+jest.config.js
+**/*.integ.snapshot
+**/*.integ.snapshot