Bump org.bouncycastle:bcprov-jdk18on in the maven group

Bumps the maven group with 1 update: [org.bouncycastle:bcprov-jdk18on](https://github.com/bcgit/bc-java).


Updates `org.bouncycastle:bcprov-jdk18on` from 1.77 to 1.78
- [Changelog](https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html)
- [Commits](https://github.com/bcgit/bc-java/commits)

---
updated-dependencies:
- dependency-name: org.bouncycastle:bcprov-jdk18on
  dependency-type: direct:production
  dependency-group: maven
...

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

pom.xml

@@ -46,7 +46,7 @@
         <java.runtime.version>11</java.runtime.version>
 
         <net.ripe.ipresource.version>1.52</net.ripe.ipresource.version>
-        <bouncycastle.version>1.77</bouncycastle.version>
+        <bouncycastle.version>1.78</bouncycastle.version>
         <guava.version>33.1.0-jre</guava.version>
         <joda-time.version>2.12.7</joda-time.version>
         <xstream.version>1.4.20</xstream.version>