Move to Bouncy Castle v1.78.

As per https://bugzilla.redhat.com/show_bug.cgi?id=2276360.

Signed-off-by: Ben Smith <benjsmi@us.ibm.com>

Author: benjsmi

fabric-chaincode-shim/build.gradle

@@ -51,8 +51,8 @@ tasks.withType(org.gradle.api.tasks.testing.Test) {
 
 dependencies {
     implementation 'org.hyperledger.fabric:fabric-protos:0.3.3'
-    implementation 'org.bouncycastle:bcpkix-jdk18on:1.77'
-    implementation 'org.bouncycastle:bcprov-jdk18on:1.77'
+    implementation 'org.bouncycastle:bcpkix-jdk18on:1.78'
+    implementation 'org.bouncycastle:bcprov-jdk18on:1.78'
     implementation 'io.github.classgraph:classgraph:4.8.165'
     implementation 'com.github.everit-org.json-schema:org.everit.json.schema:1.14.4'
     implementation 'org.json:json:20240303'