fix(cfnspec): .npmignore generated by cfnspec does not pass pkglint (#…

…15409)

A recent change to pkglint (#15064) to always include .lit.ts files in
.npmignore was not also applied to the .npmignore generator in cfnspec
which is created whenever a new CFN module is added. This will lead to
a failed build whenever the CFN spec is next updated and forces a new
module to be created.


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packages/@aws-cdk/cfnspec/build-tools/create-missing-libraries.ts

@@ -254,6 +254,7 @@ async function main() {
       '**/cdk.out',
       'junit.xml',
       'test/',
+      '!*.lit.ts',
     ]);
 
     await write('lib/index.ts', [