use `--no-config-file` on all Nushell invocations

Makefile

@@ -20,9 +20,9 @@ clippy:
 test:
 	cargo build --release
 ifeq ($(ssh_addr_file),0)
-	${NU} help_func/execute_all_tests.nu
+	${NU} --no-config-file help_func/execute_all_tests.nu
 else
-	${NU} help_func/execute_all_tests.nu --ssh-addr-file $(ssh_addr_file)
+	${NU} --no-config-file help_func/execute_all_tests.nu --ssh-addr-file $(ssh_addr_file)
 endif
 
 show:

help_func/execute_all_tests.nu

@@ -13,9 +13,9 @@ def main [--ssh-addr-file: path] {
         print $"\n(ansi yellow_reverse)    LAUNCHING TEST ($test_name)(ansi reset)\n"
 
         (if $ssh_addr_file == null {
-            ^$nu.current-exe $test_name
+            ^$nu.current-exe --no-config-file $test_name
         } else {
-            ^$nu.current-exe $test_name --ssh-addr-file=$ssh_addr_file
+            ^$nu.current-exe --no-config-file $test_name --ssh-addr-file=$ssh_addr_file
         }) e>| do { |e| # capture the possible error and check if it's empty or not
         let maybe_error = ($e | parse -r "(Error: .*)")
             if ($maybe_error | is-empty) {