Switch to using issue types for bugs and features (#170)

Matches https://github.com/apple/container/pull/258

Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>

.github/ISSUE_TEMPLATE/01-bug.yml

@@ -1,7 +1,8 @@
 name: Bug report
 description: File a bug report.
 title: "[Bug]: "
-labels: ["bug", "triage"]
+labels: ["triage"]
+type: "Bug"
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/02-feature.yml

@@ -1,7 +1,8 @@
 name: Feature or enhancement request
 description: File a request for a feature or enhancement
 title: "[Request]: "
-labels: ["feature", "triage"]
+labels: ["triage"]
+type: "Feature"
 body:
   - type: markdown
     attributes: