[AUR-401] Disable Haystack telemetry with monkey patching (#1)

Sample Haystack log when running a pipeline. Note: the `pipeline.classname` can leak company information.

```json
{
  "hardware.cpus": 16,
  "hardware.gpus": 0,
  "libraries.colab": false,
  "libraries.cuda": false,
  "libraries.haystack": "1.20.0rc0",
  "libraries.ipython": false,
  "libraries.pytest": false,
  "libraries.ray": false,
  "libraries.torch": false,
  "libraries.transformers": "4.31.0",
  "os.containerized": false,
  "os.family": "Linux",
  "os.machine": "x86_64",
  "os.version": "6.2.0-26-generic",
  "pipeline.classname": "TempPipeline",
  "pipeline.config_hash": "07a8eddd5a6e512c0d898c6d9f445ed9",
  "pipeline.nodes.PromptNode": 1,
  "pipeline.nodes.Shaper": 1,
  "pipeline.nodes.WebRetriever": 1,
  "pipeline.run_parameters.debug": false,
  "pipeline.run_parameters.documents": [
    0
  ],
  "pipeline.run_parameters.file_paths": 0,
  "pipeline.run_parameters.labels": 0,
  "pipeline.run_parameters.meta": 1,
  "pipeline.run_parameters.params": false,
  "pipeline.run_parameters.queries": true,
  "pipeline.runs": 1,
  "pipeline.type": "Query",
  "python.version": "3.10.12"
}
```

Solution: Haystack telemetry uses the `telemetry` variable, `posthog` library and `HAYSTACK_TELEMETRY_ENABLED` envar. We set the envar to False and make sure the relevant objects are disabled.

setup.py

@@ -0,0 +1,51 @@
+import codecs
+import re
+from pathlib import Path
+
+import setuptools
+
+
+def read(file_path: str) -> str:
+    return codecs.open(file_path, "r").read()
+
+
+def get_version() -> str:
+    version_file = read(str(Path("kotaemon", "__init__.py")))
+    match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", version_file, re.M)
+    if match:
+        return match.group(1)
+    raise RuntimeError("Cannot find verison string")
+
+
+setuptools.setup(
+    name="kotaemon",
+    version=get_version(),
+    author="john",
+    author_email="john@cinnamon.com",
+    description="Kotaemon core library for AI development",
+    long_description=read("README.md"),
+    long_description_content_type="text/markdown",
+    url="https://github.com/Cinnamon/kotaemon/",
+    packages=setuptools.find_packages(exclude=("tests", "tests.*")),
+    install_requires=[
+        "farm-haystack"
+    ],
+    extras_require={
+        "dev": [
+            "pytest",
+            "pre-commit",
+            "black",
+            "flake8",
+            "sphinx",
+            "coverage",
+        ]
+    },
+    entry_points={"console_scripts": ["kh=kotaemon.cli:main"]},
+    python_requires=">=3",
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: OS Independent",
+    ],
+    include_package_data=True,
+)