Bump the java-production-dependencies group across 1 directory with 4 updates

Bumps the java-production-dependencies group with 4 updates in the / directory: [org.bouncycastle:bcpkix-jdk18on](https://github.com/bcgit/bc-java), [com.google.code.gson:gson](https://github.com/google/gson), [com.google.guava:guava](https://github.com/google/guava) and [org.sonatype.central:central-publishing-maven-plugin](https://github.com/sonatype/central-publishing-maven-plugin).


Updates `org.bouncycastle:bcpkix-jdk18on` from 1.80 to 1.81
- [Changelog](https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html)
- [Commits](https://github.com/bcgit/bc-java/commits)

Updates `com.google.code.gson:gson` from 2.12.1 to 2.13.1
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/main/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.12.1...gson-parent-2.13.1)

Updates `com.google.guava:guava` from 33.4.0-jre to 33.4.8-jre
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

Updates `org.sonatype.central:central-publishing-maven-plugin` from 0.7.0 to 0.8.0
- [Commits](https://github.com/sonatype/central-publishing-maven-plugin/commits)

---
updated-dependencies:
- dependency-name: org.bouncycastle:bcpkix-jdk18on
  dependency-version: '1.81'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: java-production-dependencies
- dependency-name: com.google.code.gson:gson
  dependency-version: 2.13.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: java-production-dependencies
- dependency-name: com.google.guava:guava
  dependency-version: 33.4.8-jre
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: java-production-dependencies
- dependency-name: org.sonatype.central:central-publishing-maven-plugin
  dependency-version: 0.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: java-production-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -18,10 +18,10 @@
 		<maven.compiler.release>8</maven.compiler.release>
 
 		<!-- dependencies -->
-		<gson.version>2.12.1</gson.version>
-		<guava.version>33.4.0-jre</guava.version>
+		<gson.version>2.13.1</gson.version>
+		<guava.version>33.4.8-jre</guava.version>
 		<siv-mode.version>1.6.1</siv-mode.version>
-		<bouncycastle.version>1.80</bouncycastle.version>
+		<bouncycastle.version>1.81</bouncycastle.version>
 		<slf4j.version>2.0.17</slf4j.version>
 
 		<!-- test dependencies -->
@@ -33,7 +33,7 @@
 		<!-- build plugin dependencies -->
 		<dependency-check.version>12.1.1</dependency-check.version>
 		<jacoco.version>0.8.13</jacoco.version>
-		<central-publishing.version>0.7.0</central-publishing.version>
+		<central-publishing.version>0.8.0</central-publishing.version>
 	</properties>
 
 	<licenses>