feat: migrate issue sync to bot

.github/.jira_sync_config.yaml

@@ -0,0 +1,20 @@
+settings:
+  jira_project_key: "OPENG"
+  status_mapping:
+    opened: Untriaged
+    closed: done
+    not_planned: rejected
+
+  components:
+    - prometheus-pushgateway
+    - team-core
+
+  labels:
+    - 25.04
+
+  add_gh_comment: false
+  sync_description: false
+  sync_comments: false
+
+  label_mapping:
+    "Type: Enhancement": Story

.github/pull_request_template.md

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+## Issue
+<!-- What issue is this PR trying to solve? -->
+
+
+## Solution
+<!-- A summary of the solution addressing the above issue -->
+
+
+## Context
+<!-- What is some specialized knowledge relevant to this project/technology -->
+
+
+## Testing Instructions
+<!-- What steps need to be taken to test this PR? -->
+
+
+## Upgrade Notes
+<!-- To upgrade from an older revision of charmed prometheus, ... -->