fix(scripts): use $HOME variable for known_hosts path

	•	Replaced hardcoded ~/.ssh/known_hosts with ${HOME}/.ssh/known_hosts in check.sh and post_check.sh.
	•	Ensures compatibility with environments where $HOME may differ from the default user directory.
	•	Maintains clarity and consistency across script file path handling.

Author: warnyul

check.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-if [ ! -s ~/.ssh/known_hosts ]; then
+if [ ! -s "${HOME}/.ssh/known_hosts" ]; then
     echo "::error file=$(basename "$0"),line=${LINENO},endLine=${LINENO},title=Assertion Error::\
 ~/.ssh/known_hosts is missing or empty."
     exit 1

post_check.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-if [ -s ~/.ssh/known_hosts ]; then
+if [ -s "${HOME}/.ssh/known_hosts" ]; then
     echo "::error file=$(basename "$0"),line=${LINENO},endLine=${LINENO},title=Assertion Error::\
 ~/.ssh/known_hosts file should not exist after the job."
     exit 1