build(deps): bump pip-tools from 7.4.1 to 7.5.0 in /book/src

Bumps [pip-tools](https://github.com/jazzband/pip-tools) from 7.4.1 to 7.5.0.
- [Release notes](https://github.com/jazzband/pip-tools/releases)
- [Changelog](https://github.com/jazzband/pip-tools/blob/main/CHANGELOG.md)
- [Commits](jazzband/pip-tools@7.4.1...v7.5.0)

---
updated-dependencies:
- dependency-name: pip-tools
  dependency-version: 7.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

book/src/requirements.txt

@@ -7,7 +7,7 @@ MutPy==0.6.1
 mypy==1.17.0
 mypy-extensions==1.1.0
 pinject==0.14.1
-pip-tools==7.4.1
+pip-tools==7.5.0
 pyflakes==3.2.0
 pylint==3.3.7
 pytest==8.4.1