Bump bcprov-jdk15on from 1.68 to 1.69

Bumps [bcprov-jdk15on](https://github.com/bcgit/bc-java) from 1.68 to 1.69.
- [Release notes](https://github.com/bcgit/bc-java/releases)
- [Changelog](https://github.com/bcgit/bc-java/blob/master/docs/releasenotes.html)
- [Commits](https://github.com/bcgit/bc-java/commits)

---
updated-dependencies:
- dependency-name: org.bouncycastle:bcprov-jdk15on
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

exist-core/pom.xml

@@ -146,7 +146,7 @@
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk15on</artifactId>
-            <version>1.68</version>
+            <version>1.69</version>
         </dependency>
 
         <dependency>