Bump Saxon-HE from 12.0 to 12.1 (#124)

Bumps Saxon-HE from 12.0 to 12.1.

---
updated-dependencies:
- dependency-name: net.sf.saxon:Saxon-HE
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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pom.xml

@@ -127,7 +127,7 @@
 		<dependency.junit5.version>5.8.2</dependency.junit5.version>
 		<dependency.junit5-platform-launcher.version>1.8.2</dependency.junit5-platform-launcher.version>
 		<dependency.log4j2.version>2.20.0</dependency.log4j2.version>
-		<dependency.saxon.version>12.0</dependency.saxon.version>
+		<dependency.saxon.version>12.1</dependency.saxon.version>
 		<dependency.spotbugs-annotations.version>4.7.3</dependency.spotbugs-annotations.version>
 		<dependency.xmlresolver.version>4.5.2</dependency.xmlresolver.version>