chore: bump squidfunk/mkdocs-material in /docs (#1961)

Bumps squidfunk/mkdocs-material from `23b6978` to `0bfdba4`.

---
updated-dependencies:
- dependency-name: squidfunk/mkdocs-material
  dependency-version: 0bfdba448e93984191246f7a28abeacc79f789e7e9cf0c639a48fe4365e880a7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/Dockerfile

@@ -1,4 +1,4 @@
-FROM squidfunk/mkdocs-material@sha256:23b69789b1dd836c53ea25b32f62ef8e1a23366037acd07c90959a219fd1f285
+FROM squidfunk/mkdocs-material@sha256:0bfdba448e93984191246f7a28abeacc79f789e7e9cf0c639a48fe4365e880a7
 
 COPY requirements.txt /tmp/
 RUN pip install --require-hashes -r /tmp/requirements.txt