Bump opentelemetry from 0.18.0 to 0.20.0

Bumps [opentelemetry](https://github.com/open-telemetry/opentelemetry-rust) from 0.18.0 to 0.20.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-rust/releases)
- [Commits](open-telemetry/opentelemetry-rust@v0.18.0...v0.20.0)

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

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

agent/Cargo.toml

@@ -11,7 +11,7 @@ apiserver = { path = "../apiserver", version = "0.1.0", default-features = false
 
 dotenv = "0.15"
 futures = "0.3"
-opentelemetry = { version = "0.18", features = ["rt-tokio-current-thread"] }
+opentelemetry = { version = "0.20", features = ["rt-tokio-current-thread"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["registry", "env-filter"] }
 tracing-opentelemetry = "0.18"

apiserver/Cargo.toml

@@ -21,7 +21,7 @@ actix-web-opentelemetry = { version = "0.13", features = ["metrics", "metrics-pr
 rustls = { version = "0.20" }
 rustls-pemfile = { version = "1" }
 webpki = { version = "0.22.0", features = ["std"] }
-opentelemetry = { version = "0.18", features = ["rt-tokio-current-thread"]}
+opentelemetry = { version = "0.20", features = ["rt-tokio-current-thread"]}
 opentelemetry-prometheus = "0.11"
 tracing = "0.1"
 tracing-actix-web = "0.7"

controller/Cargo.toml

@@ -19,7 +19,7 @@ semver = "1.0"
 k8s-openapi = { version = "0.18", default-features = false, features = ["v1_24"] }
 kube = { version = "0.84", default-features = false, features = [ "derive", "runtime", "rustls-tls" ] }
 models = { path = "../models", version = "0.1.0" }
-opentelemetry = { version = "0.18", features = ["rt-tokio-current-thread"] }
+opentelemetry = { version = "0.20", features = ["rt-tokio-current-thread"] }
 opentelemetry-prometheus = "0.11"
 prometheus = "0.13.0"
 serde_plain = "1.0.1"