Bump maven-plugin-api from 3.9.0 to 3.9.1

Bumps [maven-plugin-api](https://github.com/apache/maven) from 3.9.0 to 3.9.1.
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.9.0...maven-3.9.1)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-plugin-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/buildtools/pom.xml b/buildtools/pom.xml
index b8bcbda..e677730 100644
--- a/buildtools/pom.xml
+++ b/buildtools/pom.xml
@@ -50,7 +50,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-plugin-api</artifactId>
-            <version>3.9.0</version>
+            <version>3.9.1</version>
             <optional>true</optional>
         </dependency>
         <dependency>
diff --git a/xml2fastinfoset-plugin/pom.xml b/xml2fastinfoset-plugin/pom.xml
index adac0b2..97c45c8 100644
--- a/xml2fastinfoset-plugin/pom.xml
+++ b/xml2fastinfoset-plugin/pom.xml
@@ -55,7 +55,7 @@
         <dependency>
             <groupId>org.apache.maven</groupId>
             <artifactId>maven-plugin-api</artifactId>
-            <version>3.9.0</version>
+            <version>3.9.1</version>
             <scope>provided</scope>
         </dependency>