chore(deps): bump squidfunk/mkdocs-material in /docs (#2516)

Bumps squidfunk/mkdocs-material from `11d7ec0` to `8ef47d7`.

---
updated-dependencies:
- dependency-name: squidfunk/mkdocs-material
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrea Amorosi <[email protected]>

Author: dependabot[bot]

docs/Dockerfile

@@ -1,5 +1,5 @@
 # version 9.5.2
-FROM squidfunk/mkdocs-material@sha256:11d7ec0a6e543bd56469a08d6ea1a7bc8c613cf6197be9629c4523d2d7db1c9c
+FROM squidfunk/mkdocs-material@sha256:8ef47d7116605e6b09860263af7278461c8dfca5dd3995f823dc96ea98b3f06c
 
 ADD requirements.txt /tmp/
 RUN pip install --require-hashes -r /tmp/requirements.txt