Add optional (on by default) shocker Keep-Alive (#125) #9

Job	Run time
Analyze JS/PY (javascript-typescript)	1m 23s
Analyze JS/PY (python)	2m 6s
get-targets / get-targets	3s
Analyze C/C++ (Wemos-D1-Mini-ESP32)	4m 13s
Analyze C/C++ (Wemos-Lolin-S2-Mini)	4m 2s
Analyze C/C++ (Wemos-Lolin-S3)	15m 28s
Analyze C/C++ (Pishock-2023)	3m 50s
Analyze C/C++ (Pishock-Lite-2021)	4m 3s
Analyze C/C++ (Seeed-Xiao-ESP32S3)	4m 14s
Analyze C/C++ (OpenShock-Core-V1)	4m 8s
	43m 30s

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