chore(deps): update raviqqe/muffet docker tag to v2.6.2 (#2822)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/website_link_checker/Dockerfile

@@ -4,7 +4,7 @@ FROM node:14
 ENV DOCKERIZE_VERSION v0.6.1
 
 # Muffet is used to check for broken links.
-COPY --from=raviqqe/muffet:2.4.0 muffet /usr/local/bin/muffet
+COPY --from=raviqqe/muffet:2.6.2 muffet /usr/local/bin/muffet
 
 # http-server is used to serve the website locally as muffet checks it.
 RUN yarn global add http-server