fix: quick-checks CI failures - taplo format, zepter, umbrella

1. TOML format (taplo): 123 files reformatted using correct config
   - Command: taplo format --config .config/taplo.toml

2. Zepter feature propagation fix:
   - pezframe-support: added pezsp-timestamp/try-runtime to try-runtime feature

3. generate-umbrella.py bug fix:
   - Script crashed when Cargo.toml/src didn't exist in umbrella dir
   - Added existence checks before deletion

pezkuwi/core-primitives/Cargo.toml

@@ -22,7 +22,5 @@ scale-info = { features = ["derive"], workspace = true }
 default = ["std"]
 std = ["codec/std", "pezsp-core/std", "pezsp-runtime/std", "scale-info/std"]
 runtime-benchmarks = ["pezsp-runtime/runtime-benchmarks"]
-try-runtime = [
-	"pezsp-runtime/try-runtime",
-]
+try-runtime = ["pezsp-runtime/try-runtime"]
 serde = []