Add infrahub-testcontainers from pypi, pin astroid

Author: dgarros

poetry.lock

@@ -71,7 +71,8 @@ pytest-xdist = "^3.3.1"
 types-python-slugify = "^8.0.0.3"
 invoke = "^2.2.0"
 towncrier = "^24.8.0"
-infrahub-testcontainers = {git = "https://github.com/opsmill/infrahub.git", subdirectory = "testcontainers", branch = "dga-20241220-int-testing"}
+infrahub-testcontainers = "^1.1.0b2"
+astroid = "~3.1"
 
 [tool.poetry.extras]
 ctl = ["Jinja2", "numpy", "pyarrow", "pyyaml", "rich", "toml", "typer"]