feat: Add deprecation warning on import of any ingest code (#3443)

### Description
Any time `unstructed.ingest` is imported, this deprecation warning gets
emitted:
```
DeprecationWarning: unstructured.ingest will be removed in a future version
```

CHANGELOG.md

@@ -1,9 +1,11 @@
-## 0.15.1-dev5
+## 0.15.1-dev6
 
 ### Enhancements
 
 ### Features
 
+* **Mark ingest as deprecated** Begin sunset of ingest code in this repo as it's been moved to a dedicated repo.
+
 ### Fixes
 
 * **Update `HuggingFaceEmbeddingEncoder` to use `HuggingFaceEmbeddings` from `langchain_huggingface` package instead of the deprecated version from `langchain-community`.** This resolves the deprecation warning and ensures compatibility with future versions of langchain.
@@ -20,7 +22,7 @@
 
 ### Enhancements
 
-* **Improve text clearing process in email partitioning.** Updated the email partitioner to remove both `=\n` and `=\r\n` characters during the clearing process. Previously, only `=\n` characters were removed.   
+* **Improve text clearing process in email partitioning.** Updated the email partitioner to remove both `=\n` and `=\r\n` characters during the clearing process. Previously, only `=\n` characters were removed.
 * **Bump unstructured.paddleocr to 2.8.0.1.**
 * **Refine HTML parser to accommodate block element nested in phrasing.** HTML parser no longer raises on a block element (e.g. `<p>`, `<div>`) nested inside a phrasing element (e.g. `<strong>` or `<cite>`). Instead it breaks the phrasing run (and therefore element) at the block-item start and begins a new phrasing run after the block-item. This is consistent with how the browser determines element boundaries in this situation.
 * **Install rewritten HTML parser to fix 12 existing bugs and provide headroom for refinement and growth.** A rewritten HTML parser resolves a collection of outstanding bugs with HTML partitioning and provides a firm foundation for further elaborating that important partitioner.

test_unstructured_ingest/test-ingest-dest.sh

@@ -64,6 +64,7 @@ tests_to_ignore=(
   'notion.sh'
   'dropbox.sh'
   'sharepoint.sh'
+  'databricks-volumes.sh'
 )
 
 for test in "${all_tests[@]}"; do

unstructured/__version__.py

@@ -1 +1 @@
-__version__ = "0.15.1-dev5"  # pragma: no cover
+__version__ = "0.15.1-dev6"  # pragma: no cover

unstructured/ingest/README.md

@@ -1,3 +1,8 @@
+# Ingest
+![Project unmaintained](https://img.shields.io/badge/project-unmaintained-red.svg)
+
+Project has been moved to: [Unstructured Ingest](https://github.com/Unstructured-IO/unstructured-ingest)
+
 # Batch Processing Documents [DEPRECATED]
 For the latest approach, go to: [v2](./v2)
 

unstructured/ingest/__init__.py

@@ -1 +1,10 @@
 from __future__ import annotations
+
+import warnings
+
+warnings.warn(
+    "unstructured.ingest will be removed in a future version. "
+    "Functionality moved to the unstructured-ingest project.",
+    DeprecationWarning,
+    stacklevel=2,
+)