py/makeversionhdr: Add --tags arg to git describe.

This adds the --tags argument to the git describe command that is used
to define the MICROPY_GIT_TAG macro. This makes it match non-annotated
tags. This is useful for MicroPython derivatives that don't use
annotated tags.

Signed-off-by: David Lechner <david@pybricks.com>

py/makeversionhdr.py

@@ -23,7 +23,7 @@ def get_version_info_from_git():
     # Note: git describe doesn't work if no tag is available
     try:
         git_tag = subprocess.check_output(
-            ["git", "describe", "--dirty", "--always", "--match", "v[1-9].*"],
+            ["git", "describe", "--tags", "--dirty", "--always", "--match", "v[1-9].*"],
             stderr=subprocess.STDOUT,
             universal_newlines=True,
         ).strip()