Bump doxia-module-markdown from 1.8 to 1.9.1 (#527)

Bumps doxia-module-markdown from 1.8 to 1.9.1.

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

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

Author: dependabot[bot]

pom.xml

@@ -146,7 +146,7 @@
                     <dependency>
                         <groupId>org.apache.maven.doxia</groupId>
                         <artifactId>doxia-module-markdown</artifactId>
-                        <version>1.8</version>
+                        <version>1.9.1</version>
                     </dependency>
                 </dependencies>
             </plugin>