fix(android): Fix crash when dsn or devServerUrl are missing from options

Fixes a crash on Android startup when initializing from sentry.options.json
without dsn or devServerUrl fields. The code was calling getString() on
ReadableMap without checking if the keys exist first, which throws
NoSuchKeyException for missing keys.

Both fields are optional in configuration files, so the code now checks
for key existence before accessing values, returning null when keys are
missing. This matches the pattern used throughout the rest of the file
and is already handled correctly by the null-checks in the breadcrumb
filter logic.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: antonis

packages/core/android/src/main/java/io/sentry/react/RNSentryStart.java

@@ -167,8 +167,9 @@ static void getSentryAndroidOptions(
     configureAndroidProfiling(options, rnOptions, logger);
 
     // Exclude Dev Server and Sentry Dsn request from Breadcrumbs
-    String dsn = getURLFromDSN(rnOptions.getString("dsn"));
-    String devServerUrl = rnOptions.getString("devServerUrl");
+    String dsn = rnOptions.hasKey("dsn") ? getURLFromDSN(rnOptions.getString("dsn")) : null;
+    String devServerUrl =
+        rnOptions.hasKey("devServerUrl") ? rnOptions.getString("devServerUrl") : null;
     options.setBeforeBreadcrumb(
         (breadcrumb, hint) -> {
           Object urlObject = breadcrumb.getData("url");