TEZ-4563: Bump org.bouncycastle:bcprov-jdk18on from 1.77 to 1.78 (#352). (dependabot, Reviewed by Ayush Saxena)

diff --git a/pom.xml b/pom.xml
index 98185ae..29ef524 100644
--- a/pom.xml
+++ b/pom.xml
@@ -58,7 +58,7 @@
 
     <!--dependency versions in alphabetical order-->
     <asynchttpclient.version>2.12.3</asynchttpclient.version>
-    <bouncycastle.version>1.77</bouncycastle.version>
+    <bouncycastle.version>1.78</bouncycastle.version>
     <build-helper-maven-plugin.version>1.8</build-helper-maven-plugin.version>
     <buildnumber-maven-plugin.version>1.1</buildnumber-maven-plugin.version>
     <checkstyle.version>8.35</checkstyle.version>