chore(deps): bump squidfunk/mkdocs-material from 43b898a to 49d1bfd in /docs (aws-powertools#3857)

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

Bumps squidfunk/mkdocs-material from `43b898a` to `49d1bfd`.

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

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

Author: dependabot[bot]

docs/Dockerfile

@@ -1,5 +1,5 @@
 # v9.1.18
-FROM squidfunk/mkdocs-material@sha256:43b898a5520bbe5ee0080568c002491cd8fcd2269e64f7ad2ba4c9c419acb866
+FROM squidfunk/mkdocs-material@sha256:49d1bfdaf457c5ac20a93ff59a5b57b762ace5606fc564ac2e195abf315f14ee
 # pip-compile --generate-hashes --output-file=requirements.txt requirements.in
 COPY requirements.txt /tmp/
 RUN pip install --require-hashes -r /tmp/requirements.txt