build: bump the core group with 3 updates

Bumps the core group with 3 updates: [ansys-tools-visualization-interface](https://github.com/ansys/ansys-tools-visualization-interface), [scipy](https://github.com/scipy/scipy) and [ansys-sphinx-theme](https://github.com/ansys/ansys-sphinx-theme).


Updates `ansys-tools-visualization-interface` from 0.6.2 to 0.8.1
- [Release notes](https://github.com/ansys/ansys-tools-visualization-interface/releases)
- [Changelog](https://github.com/ansys/ansys-tools-visualization-interface/blob/main/CHANGELOG.md)
- [Commits](ansys/ansys-tools-visualization-interface@v0.6.2...v0.8.1)

Updates `scipy` from 1.15.0 to 1.15.1
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.15.0...v1.15.1)

Updates `ansys-sphinx-theme` from 1.2.4 to 1.2.6
- [Release notes](https://github.com/ansys/ansys-sphinx-theme/releases)
- [Commits](ansys/ansys-sphinx-theme@v1.2.4...v1.2.6)

---
updated-dependencies:
- dependency-name: ansys-tools-visualization-interface
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: core
- dependency-name: scipy
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: core
- dependency-name: ansys-sphinx-theme
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: core
...

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

pyproject.toml

@@ -55,7 +55,7 @@ jupyter = [
 
 tests = [
     "ansys-dpf-core==0.10.1",
-    "ansys-tools-visualization-interface==0.6.2",
+    "ansys-tools-visualization-interface==0.8.1",
     "autopep8==2.3.1",
     "matplotlib==3.10.0",
     "pandas==2.2.3",
@@ -68,14 +68,14 @@ tests = [
     "pytest-rerunfailures==15.0",
     "pytest-timeout==2.3.1",
     "pytest==8.3.4",
-    "scipy==1.15.0",
+    "scipy==1.15.1",
     "vtk==9.3.1",
 ]
 doc = [
     "ansys-dpf-core==0.10.1",
     "ansys-mapdl-reader==0.54.2",
-    "ansys-sphinx-theme==1.2.4",
-    "ansys-tools-visualization-interface==0.6.2",
+    "ansys-sphinx-theme==1.2.6",
+    "ansys-tools-visualization-interface==0.8.1",
     "grpcio==1.69.0",
     "imageio-ffmpeg==0.5.1",
     "imageio==2.36.1",