tools/script_shell: Fix implicit all required parameters

When no required array was explicitly set in the shell tool
configuration, the system was intended to default all arguments as
required.

However, the implementation was incorrectly creating a slice with length
equal to the number of arguments but zero capacity, resulting in an
empty required list.

Signed-off-by: Paweł Gronowski <me@woland.xyz>

Author: vvoland

pkg/tools/builtin/script_shell.go

@@ -37,7 +37,7 @@ func NewScriptShellTool(shellTools map[string]latest.ScriptShellToolConfig, env
 func validateConfig(toolName string, tool latest.ScriptShellToolConfig) error {
 	// If no required array was set, all arguments are required
 	if tool.Required == nil {
-		tool.Required = make([]string, len(tool.Args))
+		tool.Required = make([]string, 0, len(tool.Args))
 		for argName := range tool.Args {
 			tool.Required = append(tool.Required, argName)
 		}