Bump org.bouncycastle:bcprov-jdk18on in /p2-maven-plugin

Bumps [org.bouncycastle:bcprov-jdk18on](https://github.com/bcgit/bc-java) 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
...

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

p2-maven-plugin/pom.xml

@@ -196,7 +196,7 @@
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
 			<artifactId>bcprov-jdk18on</artifactId>
-			<version>1.77</version>
+			<version>1.78</version>
 		</dependency>
 		<dependency>
 			<groupId>commons-io</groupId>