fix dependencies (#1840)

Author: normanrz

pyproject.toml

@@ -16,6 +16,9 @@ dependencies = [
     'numpy>=1.24',
     'fasteners',
     'numcodecs>=0.10.0',
+    'crc32c',
+    'zstandard',
+    'typing_extensions',
 ]
 dynamic = [
   "version",
@@ -54,15 +57,9 @@ docs = [
     'numcodecs[msgpack]',
     "msgpack",
     "lmdb",
-    "zstandard",
-    "crc32c",
 ]
 extra = [
-    'attrs',
-    'cattrs',
     'msgpack',
-    'crc32c',
-    'zstandard'
 ]
 optional = [
     'lmdb',
@@ -101,10 +98,7 @@ extra-dependencies = [
     "pytest-cov",
     "msgpack",
     "lmdb",
-    "zstandard",
-    "crc32c",
     "pytest-asyncio",
-    "typing_extensions",
     "mypy"
 ]
 features = ["extra"]