Bump org.bouncycastle:bcpg-jdk18on from 1.77 to 1.78.1

Bumps [org.bouncycastle:bcpg-jdk18on](https://github.com/bcgit/bc-java) from 1.77 to 1.78.1.
- [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:bcpg-jdk18on
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

p2-maven-plugin/pom.xml

@@ -191,7 +191,7 @@
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
 			<artifactId>bcpg-jdk18on</artifactId>
-			<version>1.77</version>
+			<version>1.78.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.bouncycastle</groupId>

tycho-p2-repository-plugin/pom.xml

@@ -44,7 +44,7 @@
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
 			<artifactId>bcpg-jdk18on</artifactId>
-			<version>1.77</version>
+			<version>1.78.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.eclipse.tycho</groupId>