Add dependency on the Android plugin library building task for tests

bdk-android/lib/build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 // library version is defined in gradle.properties
 val libraryVersion: String by project
 
@@ -107,3 +109,9 @@ signing {
     useInMemoryPgpKeys(signingKeyId, signingKey, signingPassword)
     sign(publishing.publications)
 }
+
+// This task dependency ensures that we build the bindings
+// binaries before running the tests
+tasks.withType<KotlinCompile> {
+    dependsOn("buildAndroidLib")
+}