chore: update dependencies (#589)

Updates dependencies in the CDK CLI packages.

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

Author: mrgrain

.projenrc.ts

@@ -1004,7 +1004,6 @@ const cli = configureProject(
       nodeBundle,
       yargsGen,
       cliPluginContract,
-      '@octokit/rest',
       '@types/archiver',
       '@types/fs-extra@^9',
       '@types/mockery',
@@ -1552,7 +1551,7 @@ const cliInteg = configureProject(
     srcdir: '.',
     libdir: '.',
     deps: [
-      '@octokit/rest@^18.12.0',
+      '@octokit/rest@^20', // newer versions are ESM only
       `@aws-sdk/client-codeartifact@${CLI_SDK_V3_RANGE}`,
       `@aws-sdk/client-cloudformation@${CLI_SDK_V3_RANGE}`,
       `@aws-sdk/client-ecr@${CLI_SDK_V3_RANGE}`,