fix(feedback): use instanceof check for SentryAndroidOptions cast

Follow the established defensive pattern used by all other Android
integrations instead of an unchecked cast that could throw
ClassCastException if a hybrid SDK passes a different options type.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: antonis

sentry-android-core/src/main/java/io/sentry/android/core/FeedbackShakeIntegration.java

@@ -37,7 +37,12 @@ public FeedbackShakeIntegration(final @NotNull Application application) {
 
   @Override
   public void register(final @NotNull IScopes scopes, final @NotNull SentryOptions sentryOptions) {
-    this.options = (SentryAndroidOptions) sentryOptions;
+    this.options =
+        Objects.requireNonNull(
+            (sentryOptions instanceof SentryAndroidOptions)
+                ? (SentryAndroidOptions) sentryOptions
+                : null,
+            "SentryAndroidOptions is required");
 
     if (!this.options.getFeedbackOptions().isUseShakeGesture()) {
       return;