📚 Update sphinxext-opengraph from ~=0.7.5 to ~=0.8.2 (#759)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Chris Sewell <chrisj_sewell@hotmail.com>

Author: dependabot[bot]

pyproject.toml

@@ -60,7 +60,7 @@ rtd = [
     "sphinxext-rediraffe~=0.2.7",
     # TODO this can uncommented once https://github.com/mgaitan/sphinxcontrib-mermaid/issues/109 is fixed
     # "sphinxcontrib.mermaid~=0.7.1",
-    "sphinxext-opengraph~=0.7.5",
+    "sphinxext-opengraph~=0.8.2",
     "sphinx-pyscript",
     "sphinx-tippy>=0.3.1",
     "sphinx-autodoc2~=0.4.2",