MAINTAINERS: sort entries with tag in alphabetical

Each entry must be sorted in alphabetical order with
tag as the keyword. This makes it easier for searching
when there are more entries in the future.

And this is also a common practice in English, and
alphabetical sorting is also more beautiful.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

MAINTAINERS

@@ -41,17 +41,18 @@
 # Note: 
 # - Each entry includes a `tag` that identifies the module or functionality, a `path` that points to the relevant code location, and `owners` who are the maintainers for that part of the codebase.
 # - If there are multiple entries, each entry should be separated by a blank line. Within a single entry, there is no need to insert blank lines between the tag, path, and owners.
+# - Each entry must be sorted in alphabetical order with tag as the keyword.
 
 # Below are existing maintainer entries, divided by module:
 
-tag: workflow
-path: .github
-owners: supper thomas(supperthomas)<78900636@qq.com>, Bingru Zhang(Rbb666)<751061401@qq.com>, Yuqiang Wang(kurisaW)<2053731441@qq.com>
+tag: libc
+path: components/libc
+owners: Meco Jianting Man(mysterywolf)<920369182@qq.com>
 
 tag: stm32f407-rt-spark
 path: bsp/stm32/stm32f407-rt-spark
 owners: Bingru Zhang(Rbb666)<751061401@qq.com>, Yuqiang Wang(kurisaW)<2053731441@qq.com>
 
-tag: libc
-path: components/libc
-owners: Meco Jianting Man(mysterywolf)<920369182@qq.com>
+tag: workflow
+path: .github
+owners: supper thomas(supperthomas)<78900636@qq.com>, Bingru Zhang(Rbb666)<751061401@qq.com>, Yuqiang Wang(kurisaW)<2053731441@qq.com>