[FFM-11502] - Update BC to 1.78.1

What
Update to latest BC since STO is breaking the build

Why
STO is flagging CVE-2024-34447, CVE-2024-29857, CVE-2024-30171, CVE-2024-30172

Testing
Manual

settings.gradle

@@ -28,7 +28,7 @@ dependencyResolutionManagement {
             library('okhttp3-mockwebserver', 'com.squareup.okhttp3', 'mockwebserver').versionRef('okhttp3')
 
             // examples
-            library('bc', 'org.bouncycastle:bcpkix-jdk18on:1.77')
+            library('bc', 'org.bouncycastle:bcpkix-jdk18on:1.78.1')
             library('harness.ff.sdk', 'io.harness', 'ff-java-server-sdk').versionRef('sdk')
 
             // plugins