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

bizinikiwi/pezframe/pezframe-metadata/Cargo.toml

@@ -43,11 +43,7 @@ serde_full = ["codec/serde", "scale-info/serde", "serde", "serde/alloc"]
 decode = ["scale-info/decode"]
 
 std = ["codec/std", "decode", "scale-info/std", "serde/std", "serde_full"]
-serde = [
-	"codec/serde",
-	"dep:serde",
-	"scale-info?/serde",
-]
+serde = ["codec/serde", "dep:serde", "scale-info?/serde"]
 
 [lints]
 workspace = true