Adding upstream version 0.11.12.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pyproject.toml

@@ -0,0 +1,64 @@
+[build-system]
+requires = ["setuptools", "setuptools_scm", "wheel"]
+build-backend = 'setuptools.build_meta'
+
+[tool.black]
+line-length = 120
+include = '\.pyi?$'
+exclude = '''
+(
+  /(
+      \.eggs
+    | \.git
+    | \.mypy_cache
+    | \.tox
+    | \.venv
+    | _build
+    | buck-out
+    | build
+    | dist
+    | astropy_helpers
+    | docs
+    | .history
+  )/
+  | ah_bootstrap.py
+)
+'''
+target-version = ['py310']
+
+[tool.ruff]
+# Enable Pyflakes `E` and `F` codes by default.
+select = ["E", "F"]
+ignore = ["E501", "E741"]
+
+# Allow autofix for all enabled rules (when `--fix`) is provided.
+fixable = ["A", "B", "C", "D", "E", "F"]
+
+exclude = [
+    ".eggs",
+    ".git",
+    ".mypy_cache",
+    ".ruff_cache",
+    ".tox",
+    ".venv",
+    "__pypackages__",
+    "_build",
+    "build",
+    "dist",
+    "node_modules",
+    "venv",
+]
+
+# Same as Black.
+line-length = 120
+target-version = "py310"
+
+# Allow unused variables when underscore-prefixed.
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+[tool.codespell]
+skip = "*cache*,*egg*,*extern*,.git,.idea,.tox,*.svg,.history,*sphinx.po"
+ignore-words-list = "THIRDPARTY,"
+
+[tool.djlint]
+files=["*.html"]