ReCaptchaActivity: Supress lint error for missing super call

saveCookiesAndFinish method handles back navigation

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/org/schabi/newpipe/error/ReCaptchaActivity.java

@@ -126,6 +126,7 @@ public class ReCaptchaActivity extends AppCompatActivity {
     }
 
     @Override
+    @SuppressLint("MissingSuperCall")
     public void onBackPressed() {
         saveCookiesAndFinish();
     }