tonic with no default deps

Author: dzmitry-lahoda

examples/tracing-grpc/Cargo.toml

@@ -19,7 +19,7 @@ opentelemetry_sdk = { path = "../../opentelemetry-sdk", features = ["rt-tokio"]
 opentelemetry-stdout = { path = "../../opentelemetry-stdout", features = ["trace"] }
 prost = { workspace = true }
 tokio = { workspace = true, features = ["full"] }
-tonic = { workspace = true }
+tonic = { workspace = true, default-features = false }
 serde_json = { workspace = true }
 
 [build-dependencies]

opentelemetry-otlp/Cargo.toml

@@ -35,7 +35,7 @@ opentelemetry-proto = { version = "0.26", path = "../opentelemetry-proto", defau
 tracing = {workspace = true, optional = true}
 
 prost = { workspace = true, optional = true }
-tonic = { workspace = true, optional = true }
+tonic = { workspace = true, default-features = false, optional = true }
 tokio = { workspace = true, features = ["sync", "rt"], optional = true }
 
 reqwest = { workspace = true, optional = true }

opentelemetry-proto/Cargo.toml

@@ -49,7 +49,7 @@ with-serde = ["serde", "hex"]
 populate-logs-event-name = []
 
 [dependencies]
-tonic = { workspace = true, optional = true, features = ["codegen", "prost"] }
+tonic = { workspace = true, optional = true, default-features = false, features = ["codegen", "prost"] }
 prost = { workspace = true, optional = true }
 opentelemetry = { version = "0.26", default-features = false, path = "../opentelemetry" }
 opentelemetry_sdk = { version = "0.26", default-features = false, path = "../opentelemetry-sdk" }