chore: Deprecate the `scrapy.downloadermiddlewares.decompression` module

scrapy/downloadermiddlewares/decompression.py

@@ -9,10 +9,19 @@ import tarfile
 import zipfile
 from io import BytesIO
 from tempfile import mktemp
+import warnings
 
+from scrapy.exceptions import ScrapyDeprecationWarning
 from scrapy.responsetypes import responsetypes
 
 
+warnings.warn(
+    'scrapy.downloadermiddlewares.decompression is deprecated',
+    ScrapyDeprecationWarning,
+    stacklevel=2,
+)
+
+
 logger = logging.getLogger(__name__)