Update qbft reference test submodule with SPDX header (hyperledger#2153)

* Update qbft reference test submodule with SPDX header
* exclude submodule qbft reference-test docker_interop directory from spotless check

Signed-off-by: Usman Saleem <usman@usmans.info>

build.gradle

@@ -124,6 +124,7 @@ allprojects {
         exclude '**/generalstate/LegacyGeneralStateReferenceTest*.java'
         exclude '**/blockchain/BlockchainReferenceTest*.java'
         exclude '**/blockchain/LegacyBlockchainReferenceTest*.java'
+        exclude '**/reference-test/resources/docker_interop/**'
         exclude '**/.gradle/**'
       }
       removeUnusedImports()

consensus/qbft/build.gradle

@@ -34,7 +34,9 @@ sourceSets {
       runtimeClasspath += main.output
       srcDir file('src/reference-test/java')
     }
-    resources.srcDir file('src/reference-test/resources')
+    resources {
+      srcDir file('src/reference-test/resources')
+    }
   }
 }
 
@@ -117,7 +119,7 @@ task ('validateReferenceTestSubmodule') {
   description = "Checks that the reference tests submodule is not accidentally changed"
   doLast {
     def result = new ByteArrayOutputStream()
-    def expectedHash = '3862d7282e017f8d2c5af88e4c1eeeafcbb97697'
+    def expectedHash = 'c0077a14e0d773e239ba944f371ea640df8b1b60'
     def submodulePath = java.nio.file.Path.of("${rootProject.projectDir}", "consensus/qbft/src/reference-test/resources").toAbsolutePath()
     try {
       exec {