chore(deps): bump nostr-tools from 2.7.2 to 2.9.1 in /frontend

Bumps [nostr-tools](https://github.com/nbd-wtf/nostr-tools) from 2.7.2 to 2.9.1.
- [Release notes](https://github.com/nbd-wtf/nostr-tools/releases)
- [Commits](https://github.com/nbd-wtf/nostr-tools/compare/v02.7.2...v2.9.1)

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

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

frontend/package-lock.json

@@ -34,7 +34,7 @@
         "latlon-geohash": "^2.0.0",
         "leaflet": "^1.9.4",
         "light-bolt11-decoder": "^3.1.1",
-        "nostr-tools": "^2.7.2",
+        "nostr-tools": "^2.9.1",
         "npm": "^10.9.0",
         "openpgp": "^5.11.0",
         "react": "^18.2.0",
@@ -13114,10 +13114,9 @@
       }
     },
     "node_modules/nostr-tools": {
-      "version": "2.7.2",
-      "resolved": "https://registry.npmjs.org/nostr-tools/-/nostr-tools-2.7.2.tgz",
-      "integrity": "sha512-Bq3Ug0SZFtgtL1+0wCnAe8AJtI7yx/00/a2nUug9SkhfOwlKS92Tef12iCK9FdwXw+oFZWMtRnSwcLayQso+xA==",
-      "license": "Unlicense",
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/nostr-tools/-/nostr-tools-2.9.1.tgz",
+      "integrity": "sha512-QYK/M2eugK82dEriVGSzZCRn6Sbb88bxICA15wr+ebEULSACysZnDhNoCxdJyqZPva5x+Ql7h4JmEfpc6Ov2fQ==",
       "dependencies": {
         "@noble/ciphers": "^0.5.1",
         "@noble/curves": "1.2.0",

frontend/package.json

@@ -75,7 +75,7 @@
     "latlon-geohash": "^2.0.0",
     "leaflet": "^1.9.4",
     "light-bolt11-decoder": "^3.1.1",
-    "nostr-tools": "^2.7.2",
+    "nostr-tools": "^2.9.1",
     "npm": "^10.9.0",
     "openpgp": "^5.11.0",
     "react": "^18.2.0",