feat(test): add rust test for fetch anchor feeds

Author: swarna1101

docs/ftso/scaling/2-getting-started.mdx

@@ -20,6 +20,7 @@ import Remix from "@site/src/components/remix";
 import FetchAnchorFeedsJs from "!!raw-loader!/examples/developer-hub-javascript/fetch_anchor_feeds.js";
 import FetchAnchorFeedsPy from "!!raw-loader!/examples/developer-hub-python/fetch_anchor_feeds.py";
 import FetchAnchorFeedsGo from "!!raw-loader!/examples/developer-hub-go/flare/fetch_anchor_feeds.go";
+import FetchAnchorFeedsRs from "!!raw-loader!/examples/developer-hub-rust/src/bin/fetch_anchor_feeds.rs";
 import FetchAndVerifyAnchorOnchainJs from "!!raw-loader!/examples/developer-hub-javascript/fetch_and_verify_anchor_onchain.js";
 import FtsoV2AnchorFeedConsumer from "!!raw-loader!/examples/developer-hub-solidity/FtsoV2AnchorFeedConsumer.sol";
 
@@ -103,6 +104,13 @@ To fetch the feed values for FLR/USD, BTC/USD, and ETH/USD at the latest voting
     </CodeBlock>
 
   </TabItem>
+  <TabItem value="rust" label="Rust">
+
+    <CodeBlock language="Rust" title="fetch_anchor_feeds.rs">
+      {FetchAnchorFeedsRs}
+    </CodeBlock>
+
+  </TabItem>
 </Tabs>
 
 #### API response structure