make WSLInterop local var readonly

Co-authored-by: Maksym Vlasov <[email protected]>

Author: yermulnik

hooks/_common.sh

@@ -206,7 +206,7 @@ function common::get_cpu_num {
 
   local cpu_quota cpu_period cpu_num
 
-  local wslinterop_path="/proc/sys/fs/binfmt_misc/WSLInterop"
+  local -r wslinterop_path="/proc/sys/fs/binfmt_misc/WSLInterop"
 
   if [[ -f /sys/fs/cgroup/cpu/cpu.cfs_quota_us &&
     (! -f "${wslinterop_path}" && ! -f "${wslinterop_path}-late") ]]; then # WSL has cfs_quota_us, but WSL should be checked as usual Linux host