Update Rust crate json-subscriber to v0.2.6

Author: renovate[bot]

Cargo.lock

@@ -97,7 +97,7 @@ hyper = { version = "=1.6.0", features = ["client", "http1"] }
 indexmap = { version = "=2.10.0", features = ["serde"] }
 indicatif = "=0.17.12"
 ipnetwork = "=0.21.1"
-json-subscriber = "=0.2.5"
+json-subscriber = "=0.2.6"
 lettre = { version = "=0.11.17", default-features = false, features = ["file-transport", "smtp-transport", "hostname", "builder", "tokio1", "tokio1-native-tls"] }
 minijinja = { version = "=2.11.0", features = ["loader"] }
 mockall = "=0.13.1"