ci: use GH/JIRA integration bot (#15)

Signed-off-by: Sergio Schvezov <sergio.schvezov@canonical.com>

.github/.jira_sync_config.yaml

@@ -0,0 +1,25 @@
+settings:
+  components:
+    - Craft Grammar
+  labels:
+    - Bug
+    - Enhancement
+    - Spike
+    - Epic
+  # Adds a comment with the JIRA ID
+  add_gh_comment: true
+  # Reflect changes on JIRA
+  sync_description: true
+  # Comments are synced from Github to JIRA
+  # Nothing goes from JIRA to Github
+  sync_comments: true
+  # epic_key: "MTC-296"
+  jira_project_key: "CRAFT"
+  status_mapping:
+    opened: Untriaged
+    closed: done
+  label_mapping:
+    Enhancement: Story
+    Bug: Bug
+    Spike: Spike
+    Epic: Epic