Bump anyhow from 1.0.45 to 1.0.51 in /src/agent (microsoft#1490)

Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.45 to 1.0.51.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](dtolnay/anyhow@1.0.45...1.0.51)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marc Greisen <marc@greisen.org>

Author: dependabot[bot]

src/agent/Cargo.lock

@@ -7,7 +7,7 @@ publish = false
 
 
 [dependencies]
-anyhow = "1.0.45"
+anyhow = "1.0.51"
 async-trait = "0.1"
 downcast-rs = "1.2"
 env_logger = "0.9"