chore(aws-cdk-lib): revert raising the min node version to v14 (aws#1…

…2704)

This reverts commit 4aa64c8

This change is incompatible with our build image 'jsii/superchain' that
has node v10 as its requirement. We would still like the default version
of this build image to stay at v10 since that is the minimum supported
version of CDKv1.

Additional work is required in this area before we can raise the node
version requirement for this package. Reverting now so we don't have
a blocked pipeline.

----

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

.yarnrc

@@ -1,2 +1 @@
 --install.check-files     true      # install will verify file tree of packages for consistency
-ignore-engines            true      # the 'engines' key for 'aws-cdk-lib' has specifies node14 as min while v1 will remain at node10

tools/pkglint/lib/rules.ts

@@ -1070,11 +1070,7 @@ export class MustHaveNodeEnginesDeclaration extends ValidationRule {
   public readonly name = 'package-info/engines';
 
   public validate(pkg: PackageJson): void {
-    if (cdkMajorVersion() === 2) {
-      expectJSON(this.name, pkg, 'engines.node', '>= 14.15.0');
-    } else {
-      expectJSON(this.name, pkg, 'engines.node', '>= 10.13.0 <13 || >=13.7.0');
-    }
+    expectJSON(this.name, pkg, 'engines.node', '>= 10.13.0 <13 || >=13.7.0');
   }
 }