Bump idna from 3.13 to 3.15

Bumps [idna](https://github.com/kjd/idna) from 3.13 to 3.15.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.md)
- [Commits](kjd/idna@v3.13...v3.15)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.15'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-notebook.txt

@@ -25,7 +25,7 @@ fqdn==1.5.1
 h11==0.16.0
 httpcore==1.0.9
 httpx==0.28.1
-idna==3.13
+idna==3.15
 ipykernel==7.2.0
 ipython==9.13.0
 ipython_pygments_lexers==1.1.1

requirements.txt

@@ -1,6 +1,6 @@
 certifi==2026.4.22
 charset-normalizer==3.4.7
-idna==3.13
+idna==3.15
 python-dateutil==2.9.0.post0
 python-dotenv==1.2.2
 requests==2.33.1