build(deps): bump idna in /book/src/ch10/service/libs/web

Bumps [idna](https://github.com/kjd/idna) from 2.10 to 3.7.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](kjd/idna@v2.10...v3.7)

---
updated-dependencies:
- dependency-name: idna
  dependency-type: direct:production
...

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

Author: dependabot[bot]

book/src/ch10/service/libs/web/requirements.txt

@@ -10,7 +10,7 @@ h11==0.9.0                # via httpcore
 httpcore==0.11.1          # via httpx
 httptools==0.1.1          # via sanic
 httpx==0.23.0             # via sanic
-idna==2.10                # via rfc3986
+idna==3.7                # via rfc3986
 multidict==5.0.0          # via sanic
 rfc3986[idna2008]==1.4.0  # via httpx
 sanic==20.12.7             # via web (setup.py)