fix(github-action): update image ghcr.io/bjw-s/mdbook to v0.4.37 (#5657)

| datasource | package              | from   | to     |
| ---------- | -------------------- | ------ | ------ |
| docker     | ghcr.io/bjw-s/mdbook | 0.4.36 | 0.4.37 |

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

.github/workflows/docs.yaml

@@ -29,7 +29,7 @@ jobs:
           token: "${{ steps.generate-token.outputs.token }}"
 
       - name: Build docs
-        uses: docker://ghcr.io/bjw-s/mdbook:0.4.36@sha256:459333c2918526a224fae695c9606d5d678d34b1fd0169e4a856fc00aa7ff3e3
+        uses: docker://ghcr.io/bjw-s/mdbook:0.4.37@sha256:b311fe67ecaa0c9c84814121300f92b8e96105bd0fef06396a71d621ee7b0fde
         with:
           args: mdbook build docs