Revert "Update urllib3 requirement from ~=1.26 to ~=2.1"

This reverts commit 0f2b823.

Author: janheinrichmerker

pyproject.toml

@@ -56,7 +56,7 @@ dependencies = [
     "requests-ratelimiter~=0.4.0",
     "tqdm~=4.66",
     "unidecode~=1.3",
-    "urllib3~=2.1",
+    "urllib3~=1.26",
     "warcio~=1.7",
     "warc-s3~=0.1.1",
     "web-archive-api~=0.1.6",