fix(docs): Missing url in discussions link

Author: alessfg

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -15,7 +15,7 @@ body:
         **Note:** If you are seeking community support, please start a new topic in the [NGINX Community forum][forum]. If you wish to discuss the codebase, please start a new thread via [GitHub discussions][discussions].
 
         [issue search]: https://github.com/{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/search?q=is%3Aissue&type=issues
-        [discussions]: https://{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/discussions
+        [discussions]: https://github.com/{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/discussions
         [forum]: https://community.nginx.org
 
   - type: textarea

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -13,7 +13,7 @@ body:
         **Note:** If you are seeking community support, please start a new topic in the [NGINX Community forum][forum]. If you wish to discuss the codebase, please start a new thread via [GitHub discussions][discussions].
 
         [issue search]: https://github.com/{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/search?q=is%3Aissue&type=issues
-        [discussions]: https://{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/discussions
+        [discussions]: https://github.com/{{REPOSITORY_OWNER}}/{{REPOSITORY_URL}}/discussions
         [forum]: https://community.nginx.org
 
   - type: textarea