Bump dropshot from 1f98f79 to a1363c5 (#180)

Bumps [dropshot](https://github.com/oxidecomputer/dropshot) from `1f98f79` to `a1363c5`.
- [Release notes](https://github.com/oxidecomputer/dropshot/releases)
- [Commits](oxidecomputer/dropshot@1f98f79...a1363c5)

---
updated-dependencies:
- dependency-name: dropshot
  dependency-type: direct:production
...

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