chore: reduce amount of throttling to CodeArtifact (aws#24402)

Our new mechanism of testing candidate packages in our pipeline is by uploading them to CodeArtifact, instead of using hacky local tools that fake being NPM, NuGet, Maven, etc.

For the regression tests, we need access to versions `X` and `X+1` for packages, so we set all packages to `upstream: ALLOW` (individually, because there is no other way). This giant call volume is causing throttling which is alarming to the CodeArtifact team.

Only enable configuring upstreams for the regression test jobs, which is a lot less than for all tests.

----

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

packages/@aws-cdk-testing/cli-integ/bin/stage-distribution.ts

@@ -34,6 +34,12 @@ async function main() {
       type: 'boolean',
       requiresArg: false,
     })
+    .option('regression', {
+      description: 'Enable access to previous versions of the staged packages (this is expensive for CodeArtifact so we only do it when necessary)',
+      type: 'boolean',
+      requiresArg: false,
+      default: false,
+    })
     .command('publish <DIRECTORY>', 'Publish a given directory', cmd => cmd
       .positional('DIRECTORY', {
         descripton: 'Directory distribution',
@@ -190,6 +196,7 @@ async function publish(repo: TestRepository, usageDir: UsageDir, args: {
   python?: boolean;
   java?: boolean;
   dotnet?: boolean;
+  regression?: boolean;
 }) {
   const directory = `${args.DIRECTORY}`;
   const login = await repo.loginInformation();
@@ -221,8 +228,10 @@ async function publish(repo: TestRepository, usageDir: UsageDir, args: {
     await uploadDotnetPackages(glob.sync(path.join(directory, 'dotnet', '**', '*.nupkg')), usageDir);
   });
 
-  console.log('🛍 Configuring packages for upstream versions');
-  await repo.markAllUpstreamAllow();
+  if (args.regression) {
+    console.log('🛍 Configuring packages for upstream versions');
+    await repo.markAllUpstreamAllow();
+  }
 }
 
 function whichRepos(args: {

packages/aws-cdk/test/integ/test-cli-regression-against-current-code.sh

@@ -9,4 +9,4 @@ previous=$(${INTEG_TOOLS}/bin/query-github last-release --token $GITHUB_TOKEN --
 echo "Previous version is: $previous"
 
 # Old tests, new CLI, new framework
-exec $INTEG_TOOLS/bin/download-and-run-old-tests "$previous" --use-cli-release=$VERSION cli-integ-tests
+exec $INTEG_TOOLS/bin/download-and-run-old-tests "$previous" --regression --use-cli-release=$VERSION cli-integ-tests

packages/aws-cdk/test/integ/test-cli-regression-against-latest-release.sh

@@ -8,4 +8,4 @@ previous=$(${INTEG_TOOLS}/bin/query-github last-release --token $GITHUB_TOKEN --
 echo "Previous version is: $previous"
 
 # Old tests, new CLI, old framework
-exec $INTEG_TOOLS/bin/download-and-run-old-tests "$previous" --use-cli-release=$VERSION --framework-version=$previous cli-integ-tests
+exec $INTEG_TOOLS/bin/download-and-run-old-tests "$previous" --regression --use-cli-release=$VERSION --framework-version=$previous cli-integ-tests