Fixing blank assignee in templates (#63)

* Update 1-bugreport.yml

* Update 2-feature.yml

Author: igorpecovnik

.github/ISSUE_TEMPLATE/1-bugreport.yml

@@ -2,7 +2,7 @@ name: Bug Report for the Armbian Config
 description: Create a bug report if there is something wrong with the Armbian config.
 title: "[Bug]: "
 labels: ["Bug"]
-assignees: ""
+assignees: [""]
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/2-feature.yml

@@ -2,7 +2,7 @@ name: Feature Request for the Armbian Config
 description: Suggest a feature that you want to see implemented.
 title: "[Feature Request]: "
 labels: ["Feature Request"]
-assignees: ""
+assignees: [""]
 body:
   - type: markdown
     attributes: