Add working password update

Signed-off-by: Marcel Müller <neikos@neikos.email>

nixie-server/migrations/20260123170914_create_api_keys.up.sql

@@ -6,7 +6,7 @@ CREATE TABLE IF NOT EXISTS api_keys
     user_id INTEGER NOT NULL REFERENCES users(id),
     token TEXT NOT NULL,
     name TEXT NOT NULL,
-    expiration_date TEXT NOT NULL,
+    expiration_date DATE NOT NULL,
     permissions TEXT NOT NULL,
     revoked BOOLEAN NOT NULL
 );