fix: comprehensive feature propagation and dep:serde fixes

- Fix serde optional dependency issues by adding dep:serde to serde features (24 crates)
- Run zepter to propagate runtime-benchmarks, std, try-runtime, serde, experimental, with-tracing, tuples-96 features
- Regenerate umbrella crate with proper feature propagation
- Format all TOML files with taplo

This resolves check-umbrella and check-zepter CI failures.

bizinikiwi/client/proposer-metrics/Cargo.toml

@@ -19,3 +19,10 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 log = { workspace = true, default-features = true }
 prometheus-endpoint = { workspace = true, default-features = true }
+
+[features]
+std = [
+	"log/std",
+	"prometheus-endpoint/std",
+]
+serde = []