Bump asciidoctor-kroki from 0.17.0 to 0.18.1

Bumps [asciidoctor-kroki](https://github.com/Mogztter/asciidoctor-kroki) from 0.17.0 to 0.18.1.
- [Release notes](https://github.com/Mogztter/asciidoctor-kroki/releases)
- [Changelog](https://github.com/asciidoctor/asciidoctor-kroki/blob/master/RELEASE.md)
- [Commits](asciidoctor/asciidoctor-kroki@v0.17.0...v0.18.1)

---
updated-dependencies:
- dependency-name: asciidoctor-kroki
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -28,7 +28,7 @@
     "@neo4j-antora/mark-terms": "1.1.0",
     "@neo4j-documentation/macros": "^1.0.2",
     "@neo4j-documentation/remote-include": "^1.0.0",
-    "asciidoctor-kroki": "^0.17.0"
+    "asciidoctor-kroki": "^0.18.1"
   },
   "devDependencies": {
     "express": "^4.17.1",