Bump @neo4j-antora/antora-modify-sitemaps in the prod-dependencies group

Bumps the prod-dependencies group with 1 update: @neo4j-antora/antora-modify-sitemaps.


Updates `@neo4j-antora/antora-modify-sitemaps` from 0.5.0 to 0.6.0

---
updated-dependencies:
- dependency-name: "@neo4j-antora/antora-modify-sitemaps"
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: prod-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -22,7 +22,7 @@
     "@antora/cli": "^3.1.7",
     "@antora/site-generator-default": "^3.1.7",
     "@neo4j-antora/antora-add-notes": "^0.3.1",
-    "@neo4j-antora/antora-modify-sitemaps": "^0.5.0",
+    "@neo4j-antora/antora-modify-sitemaps": "^0.6.0",
     "@neo4j-antora/antora-page-roles": "^0.3.2",
     "@neo4j-antora/antora-table-footnotes": "^0.3.2",
     "@neo4j-antora/antora-unlisted-pages": "^0.1.0",