Bump asciidoctor-plugins from 4.0.2 to 4.0.3 (#3893)

Bumps `asciidoctor-plugins` from 4.0.2 to 4.0.3.

Updates `org.asciidoctor.jvm.convert` from 4.0.2 to 4.0.3

Updates `org.asciidoctor.jvm.pdf` from 4.0.2 to 4.0.3

---
updated-dependencies:
- dependency-name: org.asciidoctor.jvm.convert
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.asciidoctor.jvm.pdf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 ant = "1.10.14"
 apiguardian = "1.1.2"
 asciidoctorj-pdf = "2.3.17"
-asciidoctor-plugins = "4.0.2" # Check if workaround in documentation.gradle.kts can be removed when upgrading
+asciidoctor-plugins = "4.0.3" # Check if workaround in documentation.gradle.kts can be removed when upgrading
 assertj = "3.26.3"
 bnd = "7.0.0"
 checkstyle = "10.17.0"