Bump com.diffplug.spotless:spotless-maven-plugin in /java (#870)

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

Author: dependabot[bot]

java/pom.xml

@@ -445,7 +445,7 @@
                     <plugin>
                         <groupId>com.diffplug.spotless</groupId>
                         <artifactId>spotless-maven-plugin</artifactId>
-                        <version>2.45.0</version>
+                        <version>2.46.1</version>
                         <configuration>
                             <checkSkip>${skipUnitTests}</checkSkip>
                             <java>