chore: update docker.io/oven/bun docker tag to v1.3.6

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

Author: renovate[bot]

Dockerfile

@@ -10,7 +10,7 @@ ARG TOOLCHAIN
 FROM scratch AS generate
 
 # runs markdownlint
-FROM docker.io/oven/bun:1.1.22-alpine AS lint-markdown
+FROM docker.io/oven/bun:1.3.6-alpine AS lint-markdown
 WORKDIR /src
 RUN bun i markdownlint-cli@0.41.0 sentences-per-line@0.2.1
 COPY .markdownlint.json .