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/utils/pez-generate-bags/Cargo.toml

@@ -24,10 +24,5 @@ runtime-benchmarks = [
 	"pez-generate-bags/runtime-benchmarks",
 	"zagros-runtime/runtime-benchmarks",
 ]
-std = [
-	"pez-generate-bags/std",
-]
-try-runtime = [
-	"pez-generate-bags/try-runtime",
-	"zagros-runtime/try-runtime",
-]
+std = ["pez-generate-bags/std"]
+try-runtime = ["pez-generate-bags/try-runtime", "zagros-runtime/try-runtime"]

pezkuwi/utils/remote-ext-tests/bags-list/Cargo.toml

@@ -33,10 +33,7 @@ runtime-benchmarks = [
 	"zagros-runtime-constants/runtime-benchmarks",
 	"zagros-runtime/runtime-benchmarks",
 ]
-std = [
-	"log/std",
-	"pezpallet-bags-list-remote-tests/std",
-]
+std = ["log/std", "pezpallet-bags-list-remote-tests/std"]
 try-runtime = [
 	"pezframe-system/try-runtime",
 	"pezpallet-bags-list-remote-tests/try-runtime",