HBASE-28552 Bump up bouncycastle dependency from 1.76 to 1.78 (#5854)

Signed-off-by: Duo Zhang <zhangduo@apache.org>
diff --git a/pom.xml b/pom.xml
index 195d3d7..b750cac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -877,7 +877,7 @@
     <joni.version>2.2.1</joni.version>
     <jcodings.version>1.0.58</jcodings.version>
     <spy.version>2.12.2</spy.version>
-    <bouncycastle.version>1.76</bouncycastle.version>
+    <bouncycastle.version>1.78</bouncycastle.version>
     <skyscreamer.version>1.5.1</skyscreamer.version>
     <kerby.version>1.0.1</kerby.version>
     <commons-crypto.version>1.1.0</commons-crypto.version>