Bump influxdb from 0.7.2 to 0.8.0 (#252)

Bumps [influxdb](https://github.com/influxdb-rs/influxdb-rust) from 0.7.2 to 0.8.0.
- [Release notes](https://github.com/influxdb-rs/influxdb-rust/releases)
- [Changelog](https://github.com/influxdb-rs/influxdb-rust/blob/main/CHANGELOG.md)
- [Commits](influxdb-rs/influxdb-rust@v0.7.2...v0.8.0)

---
updated-dependencies:
- dependency-name: influxdb
  dependency-version: 0.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]