Bump scanspec from 0.7.0 to 0.7.6

Bumps [scanspec](https://github.com/bluesky/scanspec) from 0.7.0 to 0.7.6.
- [Release notes](https://github.com/bluesky/scanspec/releases)
- [Commits](bluesky/scanspec@0.7.0...0.7.6)

---
updated-dependencies:
- dependency-name: scanspec
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements_doc.txt

@@ -7,5 +7,5 @@ h5py==3.11.0
 hdf5plugin==4.4.0
 freephil==0.2.1
 importlib_resources==6.4.4
-scanspec==0.7.0
+scanspec==0.7.6
 pydantic==2.7