fix(fromUrl): Better error message for redirects (#2978)

When using SpEL functions like `*FromUrl` when the request requires auth and causes
a redirect response, we get a confusing "Not retrying" error message.
Make it a more descriptive error message that indicated where we are redirecting to (e.g. `login.asp`)
and state that it's not supported

orca-core/src/main/java/com/netflix/spinnaker/orca/pipeline/util/HttpClientUtils.java

@@ -75,6 +75,13 @@ public boolean retryRequest(
                     boolean shouldRetry =
                         (statusCode == 429 || RETRYABLE_500_HTTP_STATUS_CODES.contains(statusCode))
                             && executionCount <= MAX_RETRIES;
+
+                    if ((statusCode >= 300) && (statusCode <= 399)) {
+                      throw new RetryRequestException(
+                          String.format(
+                              "Attempted redirect from %s to %s which is not supported",
+                              currentReq.getURI(), response.getFirstHeader("LOCATION").getValue()));
+                    }
                     if (!shouldRetry) {
                       throw new RetryRequestException(
                           String.format(