feat(uptime): Add missing User-Agent to example http request (#81180)

Author: evanpurkhiser

static/app/views/alerts/rules/uptime/httpSnippet.spec.tsx

@@ -31,6 +31,7 @@ describe('HTTPSnippet', function () {
       'POST /test?query=value HTTP/1.1',
       'Host: example.com',
       'X-Something: Header Value',
+      'User-Agent: SentryUptimeBot/1.0 (+http://docs.sentry.io/product/alerts/uptime-monitoring/',
       'Sentry-Trace: sentry-trace-value',
       'Content-Size: 18',
       ``,

static/app/views/alerts/rules/uptime/httpSnippet.tsx

@@ -32,7 +32,14 @@ export function HTTPSnippet({body, headers, method, url, traceSampling}: Props)
     : urlObject.pathname;
 
   const appendedBody = body ? `\r\n${body}` : '';
-  const additionaLheaders = [...headers, ['Sentry-Trace', exampleTrace]];
+  const additionaLheaders = [
+    ...headers,
+    [
+      'User-Agent',
+      'SentryUptimeBot/1.0 (+http://docs.sentry.io/product/alerts/uptime-monitoring/',
+    ],
+    ['Sentry-Trace', exampleTrace],
+  ];
 
   if (appendedBody !== '') {
     additionaLheaders.push(['Content-Size', new Blob([appendedBody]).size.toString()]);