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

Bumps squidfunk/mkdocs-material from `cd3a522` to `97da15b`.

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

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

Author: dependabot[bot]

docs/Dockerfile

@@ -1,5 +1,5 @@
 # v9.1.18
-FROM squidfunk/mkdocs-material@sha256:cd3a522b3282071586552499611f71206db0aec145d4d53822bc6fde76792cf8
+FROM squidfunk/mkdocs-material@sha256:97da15bac17e76561c88c87d5734583fd2d638a51c9f28a1a7ba8e8aa34c0fc9
 # pip-compile --generate-hashes --output-file=requirements.txt requirements.in
 COPY requirements.txt /tmp/
 RUN pip install --require-hashes -r /tmp/requirements.txt