fix(nx-plugin): don't generate cli property in migrations.json (#18304)

e2e/plugin/src/nx-plugin.test.ts

@@ -76,7 +76,6 @@ describe('Nx Plugin', () => {
         [`update-${version}`]: {
           version,
           description: `update-${version}`,
-          cli: `nx`,
           implementation: `./src/migrations/update-${version}/update-${version}`,
         },
       }),

packages/plugin/src/generators/migration/migration.ts

@@ -73,7 +73,6 @@ function updateMigrationsJson(host: Tree, options: NormalizedSchema) {
   generators[options.name] = {
     version: options.packageVersion,
     description: options.description,
-    cli: 'nx',
     implementation: `./src/migrations/${options.name}/${options.name}`,
   };
   migrations.generators = generators;