Bump bcprov-jdk15on from 1.65.01 to 1.66

Bumps [bcprov-jdk15on](https://github.com/bcgit/bc-java) from 1.65.01 to 1.66.
- [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)

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

build.gradle

@@ -114,7 +114,7 @@ dependencies {
     implementation group: 'org.apache.tika', name: 'tika-core', version: '1.24.1'
 
     // required for reading write-protected PDFs - see https://github.com/JabRef/jabref/pull/942#issuecomment-209252635
-    implementation 'org.bouncycastle:bcprov-jdk15on:1.65.01'
+    implementation 'org.bouncycastle:bcprov-jdk15on:1.66'
 
     implementation 'commons-cli:commons-cli:1.4'