build(deps): bump sphinx-new-tab-link from 0.7.0 to 0.8.0

Bumps [sphinx-new-tab-link](https://github.com/ftnext/sphinx-new-tab-link) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/ftnext/sphinx-new-tab-link/releases)
- [Commits](ftnext/sphinx-new-tab-link@v0.7.0...v0.8.0)

---
updated-dependencies:
- dependency-name: sphinx-new-tab-link
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -80,7 +80,7 @@ docs = [
   "shibuya==2025.3.24",
   "sphinx==8.2.3",
   "sphinx-copybutton==0.5.2",
-  "sphinx-new-tab-link==0.7.0",
+  "sphinx-new-tab-link==0.8.0",
 ]
 tests = [
   "numpy==2.2.4 ; sys_platform == 'linux' and python_version == '3.13'",