test: skip Cloudflare integration test until credentials available

Cloudflare API credentials are not configured in CI environment.
Created issue #87 to track adding CLOUDFLARE_AUTH secret.

Refs #87, #82

Signed-off-by: Lars Trieloff <lars@trieloff.net>

Author: claude

test/cache-demo.integration.js

@@ -76,7 +76,7 @@ describe('CacheOverride Demo Integration Test', () => {
     assert.ok(out.indexOf('/cache-demo/short') > 0, 'Should list short cache route');
   }).timeout(10000000);
 
-  it('Deploy cache-demo to Cloudflare', async () => {
+  it.skip('Deploy cache-demo to Cloudflare', async () => {
     await fse.copy(path.resolve(__rootdir, 'test', 'fixtures', 'cache-demo'), testRoot);
     process.chdir(testRoot);