x402 SDK vulnerable in outdated versions in resource servers for builders
### Impact
There is a security vulnerability in outdated versions of the x402 SDK. This does not directly affect users' keys, smart contracts, or funds.
This primarily impacts builders working on resource servers.
### Patches
Please update to the following package versions:
* x402 >= 0.5.2
* x402-next >= 0.5.2
* x402-express >= 0.5.2
* x402-hono >= 0.5.2