Bump gadget-sdk from 69710ac to d3c0bd2

Bumps [gadget-sdk](https://github.com/webb-tools/gadget) from `69710ac` to `d3c0bd2`.
- [Release notes](https://github.com/webb-tools/gadget/releases)
- [Commits](tangle-network/gadget@69710ac...d3c0bd2)

---
updated-dependencies:
- dependency-name: gadget-sdk
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>