chore(deps): bump cattrs from 25.3.0 to 26.1.0

Bumps [cattrs](https://github.com/python-attrs/cattrs) from 25.3.0 to 26.1.0.
- [Release notes](https://github.com/python-attrs/cattrs/releases)
- [Changelog](https://github.com/python-attrs/cattrs/blob/main/HISTORY.md)
- [Commits](python-attrs/cattrs@v25.3.0...v26.1.0)

---
updated-dependencies:
- dependency-name: cattrs
  dependency-version: 26.1.0
  dependency-type: indirect
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/main.txt

@@ -146,9 +146,9 @@ cachetools==7.0.1 \
     --hash=sha256:8f086515c254d5664ae2146d14fc7f65c9a4bce75152eb247e5a9c5e6d7b2ecf \
     --hash=sha256:e31e579d2c5b6e2944177a0397150d312888ddf4e16e12f1016068f0c03b8341
     # via premailer
-cattrs==25.3.0 \
-    --hash=sha256:1ac88d9e5eda10436c4517e390a4142d88638fe682c436c93db7ce4a277b884a \
-    --hash=sha256:9896e84e0a5bf723bc7b4b68f4481785367ce07a8a02e7e9ee6eb2819bc306ff
+cattrs==26.1.0 \
+    --hash=sha256:d1e0804c42639494d469d08d4f26d6b9de9b8ab26b446db7b5f8c2e97f7c3096 \
+    --hash=sha256:fa239e0f0ec0715ba34852ce813986dfed1e12117e209b816ab87401271cdd40
     # via linehaul
 cbor2==5.8.0 \
     --hash=sha256:0427bd166230fe4c4b72965c6f2b6273bf29016d97cf08b258fa48db851ea598 \