Fix documentation build ESM/CommonJS conflict (#7348)

Author: afarber

CHANGELOG.md

@@ -8,6 +8,7 @@
       - ADDED: Add exception for audible fences (`barrier=fence` with `sensory=audible` or `sensory=audio`) that deter livestock but do not block vehicles [#6964](https://github.com/Project-OSRM/osrm-backend/issues/6964)
       - ADDED: Use `is_sidepath:of:name` and `street:name` as fallback names for unnamed sidewalks and sidepaths in foot and bicycle profiles [#7259](https://github.com/Project-OSRM/osrm-backend/issues/7259)
     - Build:
+      - FIXED: Documentation build fails with ESM/CommonJS conflict after adding "type": "module" [#7347](https://github.com/Project-OSRM/osrm-backend/issues/7347)
       - FIXED: Set `hwloc:shared=True` in Conan config as required by onetbb [#7342](https://github.com/Project-OSRM/osrm-backend/issues/7342)
       - CHANGED: Cucumber tests now can run in parallel and other improvements [#7309](https://github.com/Project-OSRM/osrm-backend/issues/7309)
       - FIXED: Update Node.js binding path from `lib/binding` to `lib/binding_napi_v8` to match node-pre-gyp versioning conventions [#7272](https://github.com/Project-OSRM/osrm-backend/pull/7272)

package-lock.json

@@ -40,8 +40,9 @@ cp docs/*.md build/docs/tmp/content
 # Now, run the scripts to generate the actual final product
 pushd build/docs/tmp 
 NODE_ENV=production browserify src/index.js | uglifyjs -c -m > ../bundle.js 
-babel src --out-dir lib 
-node lib/render.js ../index.html 
+# Output as .cjs since package.json has "type": "module"
+babel src --out-dir lib --out-file-extension .cjs
+node lib/render.cjs ../index.html 
 popd
 
 # Cleanup