Method was missing from post request

Signed-off-by: Fred Boniface <fred@fjla.uk>

src/services/issue.services.js

@@ -23,6 +23,7 @@ async function sendToGitea(body) {
   let key = process.env.OWL_GIT_ISSUEBOT;
   let url = process.env.OWL_GIT_APIENDPOINT;
   let opts = {
+    method: "POST",
     headers: {
       Authorization: key,
     },