test(optimize): drop stale newline from expected logger.info call

handle-optimize.mts:80 calls logger.info('Optimizing packages for ${agent} v${agentVersion}.')
with no trailing newline. The test was asserting the same string plus
'\n'. Mock receives exactly what the source passes; drop the '\n'.

Surfaced by the post-rename test sweep — unrelated to the rename work
itself.

Author: jdalton

packages/cli/test/unit/commands/optimize/handle-optimize.test.mts

@@ -276,7 +276,7 @@ describe('handleOptimize', () => {
     })
 
     expect(mockLogger.info).toHaveBeenCalledWith(
-      'Optimizing packages for pnpm v8.0.0.\n',
+      'Optimizing packages for pnpm v8.0.0.',
     )
     expect(applyOptimization).toHaveBeenCalledWith(
       expect.objectContaining({ agent: 'pnpm' }),