chore: fix repository url field in package.json

Signed-off-by: Richard Steinmetz <richard@steinmetz.cloud>

Author: st3iny

package.json

@@ -13,7 +13,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/nextcloud-libraries/timezones.git"
+    "url": "git+https://github.com/nextcloud-libraries/timezones.git"
   },
   "type": "module",
   "main": "dist/index.mjs",