Cargo.toml: require tonic ≥ 0.12.3, below which we are not compatible (#2753)

Author: Twey

Cargo.toml

@@ -137,8 +137,8 @@ test-log = { version = "0.2.15", default-features = false, features = ["trace"]
 test-strategy = "0.3.1"
 thiserror = "1.0.65"
 thiserror-context = "0.1.1"
-tonic = { version = "0.12", default-features = false }
-tonic-build = { version = "0.12", default-features = false }
+tonic = { version = "0.12.3", default-features = false }
+tonic-build = { version = "0.12.3", default-features = false }
 tonic-health = "0.12"
 tonic-reflection = "0.12"
 tonic-web = "0.12"