chore(deps): bump nostr-sdk from 0.35.1 to 0.41.0

Bumps [nostr-sdk](https://github.com/rust-nostr/nostr) from 0.35.1 to 0.41.0.
- [Release notes](https://github.com/rust-nostr/nostr/releases)
- [Changelog](https://github.com/rust-nostr/nostr/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-nostr/nostr/commits/v0.41.0)

---
updated-dependencies:
- dependency-name: nostr-sdk
  dependency-version: 0.41.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -28,7 +28,7 @@ drf-spectacular==0.28.0
 drf-spectacular-sidecar==2024.12.1
 django-cors-headers==4.6.0
 base91==1.0.1
-nostr-sdk==0.35.1
+nostr-sdk==0.41.0
 pygeohash==1.2.0
 asgiref == 3.8.1
 secp256k1