Include tomli 2.3.0

Can be imported as `easybuild.tools.tomllib` and will use the official
`tomllib` package on Python 3.11.

Author: Flamefire

easybuild/tools/tomllib/__init__.py

@@ -0,0 +1,7 @@
+"""Compatibility module referring to the Python 3.11+ tomllib or an internal copy"""
+import sys
+
+if sys.version_info < (3, 11):
+    from .tomli import *  # noqa
+else:
+    from tomllib import *  # noqa, pylint: disable=import-error

easybuild/tools/tomllib/tomli/__init__.py

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
+# Licensed to PSF under a Contributor Agreement.
+
+__all__ = ("loads", "load", "TOMLDecodeError")
+__version__ = "2.3.0"  # DO NOT EDIT THIS LINE MANUALLY. LET bump2version UTILITY DO IT
+
+from ._parser import TOMLDecodeError, load, loads