chore(deps): bump attrs from 25.3.0 to 25.4.0

Bumps [attrs](https://github.com/sponsors/hynek) from 25.3.0 to 25.4.0.
- [Commits](https://github.com/sponsors/hynek/commits)

---
updated-dependencies:
- dependency-name: attrs
  dependency-version: 25.4.0
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements/main.txt

@@ -60,9 +60,9 @@ asn1crypto==1.5.1 \
     --hash=sha256:13ae38502be632115abf8a24cbe5f4da52e3b5231990aff31123c805306ccb9c \
     --hash=sha256:db4e40728b728508912cbb3d44f19ce188f218e9eba635821bb4b68564f8fd67
     # via webauthn
-attrs==25.3.0 \
-    --hash=sha256:427318ce031701fea540783410126f03899a97ffc6f61596ad581ac2e40e3bc3 \
-    --hash=sha256:75d7cefc7fb576747b2c81b4442d4d4a1ce0900973527c011d1030fd3bf4af1b
+attrs==25.4.0 \
+    --hash=sha256:16d5969b87f0859ef33a48b35d55ac1be6e42ae49d5e853b597db70c35c57e11 \
+    --hash=sha256:adcf7e2a1fb3b36ac48d97835bb6d8ade15b8dcce26aba8bf1d14847b57a3373
     # via
     #   cattrs
     #   jsonschema