edksetup.sh: Update "inux" to "Unix-like"

This commit replaces the outdated and
less common term "inux" with "Unix-like."
While "inux" historically served as an abbreviation for Unix-like systems,
the term "Unix-like" is now the widely accepted
and more precise descriptor in the industry,
as detailed by sources like Wikipedia's "Unix-like" entry.

This change enhances readability and
ensures consistency with current technical vocabulary,
making the text clearer for a broader audience.

Signed-off-by: Damien Chen <inkfan130924783@gmail.com>

edksetup.sh

@@ -3,7 +3,7 @@
 # Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
 # SPDX-License-Identifier: BSD-2-Clause-Patent
 #
-# In *inux environment, the build tools's source is required and need to be compiled
+# In Unix-like environment, the build tools's source is required and need to be compiled
 # firstly, please reference https://github.com/tianocore/tianocore.github.io/wiki/SourceForge-to-Github-Quick-Start
 # to get how to setup build tool.
 #