fix(federation): Allow federation error responses to be read twice

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/Federation/Proxy/TalkV1/ProxyRequest.php

@@ -118,10 +118,11 @@ protected function request(
 				$requestOptions
 			);
 		} catch (ClientException $e) {
+			$guzzleResponse = $e->getResponse();
+			$body = $guzzleResponse->getBody()->getContents();
 			$status = $e->getResponse()->getStatusCode();
 
 			try {
-				$body = $e->getResponse()->getBody()->getContents();
 				$data = json_decode($body, true, flags: JSON_THROW_ON_ERROR);
 				if (!is_array($data)) {
 					throw new \RuntimeException('JSON response is not an array');
@@ -132,7 +133,15 @@ protected function request(
 
 			$clientException = new RemoteClientException($e->getMessage(), $status, $e, $data);
 			$this->logger->debug('Client error from remote', ['exception' => $clientException]);
-			return new Response($e->getResponse(), false);
+
+			/** @psalm-suppress UndefinedClass,InvalidArgument */
+			return new Response(new \GuzzleHttp\Psr7\Response(
+				$guzzleResponse->getStatusCode(),
+				$guzzleResponse->getHeaders(),
+				$body,
+				$guzzleResponse->getProtocolVersion(),
+				$guzzleResponse->getReasonPhrase(),
+			), false);
 		} catch (ServerException|\Throwable $e) {
 			$serverException = new CannotReachRemoteException($e->getMessage(), $e->getCode(), $e);
 			$this->logger->error('Could not reach remote', ['exception' => $serverException]);