Re-enable XCM tests blocked by `XcmpMessageFormat` decode error by tracking `@polkadot/types` patch

[rockbmb]

Affected tests:

• assetHubKusama.peopleKusama.xcm.test.ts — currently failing
• assetHubKusama.coretimeKusama.xcm.test.ts — currently skipped

Both fail with the same decodeU8a error on XcmpMessageFormat index 3 (ConcatenatedOpaqueVersionedXcm), introduced by a Kusama runtime upgrade that polkadot.js doesn't know about yet.

Upstream fix: polkadot-js/api#6255

Temporary fix: yarn patch to @polkadot/types adding the missing variant (same approach as the Chopsticks patches):

 XcmpMessageFormat: {
-    _enum: ['ConcatenatedVersionedXcm', 'ConcatenatedEncodedBlob', 'Signals']
+    _enum: ['ConcatenatedVersionedXcm', 'ConcatenatedEncodedBlob', 'Signals', 'ConcatenatedOpaqueVersionedXcm']
 },

TODO

• Fix yarn patch lockfile resolution
• Re-enable both skipped/failing tests and update snapshots
• Remove patch once Add ConcatenatedOpaqueVersionedXcm to XcmpMessageFormat enum polkadot-js/api#6255 is downstreamed