[Bug]: ./scripts/build_als.sh fails on Mac Sequoia

Environment

• OS and Version: Mac OSX 15.3
• IDE Version: None. Running from Terminal
• Ada & SPARK Extension Version: gcc-14.2.0-3-aarch64

Bug Summary and Reproducer

Bug Summary: ./scripts/build_als.sh failed after Successfully installed Langkit-0.1.0:

• python manage.py make --no-mypy --generate-auto-dll-dirs --library-types=relocatable --gargs '-m -v -cargs:ada -gnateb'
  Traceback (most recent call last):
  File "/System/Volumes/Data/Ada_Source/ada_language_server/subprojects/langkit_support/manage.py", line 14, in
  from langkit.packaging import NativeLibPackager
  File "/System/Volumes/Data/Ada_Source/ada_language_server/subprojects/langkit_support/langkit/packaging.py", line 12, in
  from langkit.utils import LibraryType
  File "/System/Volumes/Data/Ada_Source/ada_language_server/subprojects/langkit_support/langkit/utils/init.py", line 341, in
  from langkit.utils.text import *
  File "/System/Volumes/Data/Ada_Source/ada_language_server/subprojects/langkit_support/langkit/utils/text.py", line 50, in
  class Language(enum.StrEnum):
  AttributeError: module 'enum' has no attribute 'StrEnum'
  error: Command ["bash", "-x", "./scripts/build_als.sh", "build_langkit_raw"] exited with code 1

Steps to reproduce:In ada_language_server run ./scripts/build_als.s

Expected behavior:./scripts/build_als.sh runs to completion without errors

Configuration and Logs

cat $HOME/.als/gpr_ls_traces.cfg
>gpr_ls_log.$T.log:buffer_size=0:buffer_size=0
ALS.MAIN=yes
ALS.IN=no
ALS.OUT=no

Other VS Code Extensions

No response

Additional context

No response

Run ./scripts/build_als.sh build_langkit_raw on Mac OSX 15.3 and start with the traceback in subprojects/langkit_support/manage.py, langkit/packaging.py, langkit/utils/init.py, and langkit/utils/text.py. Investigate the reported enum.StrEnum failure and verify that ./scripts/build_als.sh completes without errors.