Bump heapless from 0.7.17 to 0.9.2

Bumps [heapless](https://github.com/rust-embedded/heapless) from 0.7.17 to 0.9.2.
- [Release notes](https://github.com/rust-embedded/heapless/releases)
- [Changelog](https://github.com/rust-embedded/heapless/blob/main/CHANGELOG.md)
- [Commits](rust-embedded/heapless@v0.7.17...v0.9.2)

---
updated-dependencies:
- dependency-name: heapless
  dependency-version: 0.9.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -32,7 +32,7 @@ embassy-futures = "0.1.2"
 embassy-sync = "0.8.0"
 embedded-io-async = "0.7.0"
 mqttrs = { version = "0.4.1", default-features = false }
-heapless = "0.7.17"
+heapless = "0.9.2"
 embedded-io = "0.7.1"
 hex = { version = "0.4.3", default-features = false }
 pin-project = "1.1.11"