chore(deps): upgrade @pkcprotocol/pkc-js 0.0.48 -> 0.0.49 (issue #100)

Installed with --save-exact. undici stays pinned at 8.4.1 (direct dep) and
@libp2p/http dedupes to it, so the pkc-js body-timeout polyfill still covers
the right global dispatcher. pkc-js 0.0.49 still declares undici@7.24.7 nested
(unchanged from 0.0.48). Full `npm run test:cli` suite passes locally
(39 files, 306 tests, 1 skipped).

Author: Rinse12

package-lock.json

@@ -119,7 +119,7 @@
         "@oclif/plugin-help": "6.2.36",
         "@oclif/plugin-not-found": "3.2.73",
         "@oclif/table": "0.5.1",
-        "@pkcprotocol/pkc-js": "0.0.48",
+        "@pkcprotocol/pkc-js": "0.0.49",
         "dataobject-parser": "1.2.22",
         "decompress": "4.2.1",
         "env-paths": "2.2.1",