ci: remove automatic labels from GitHub issue templates to allow manual triage

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -1,6 +1,5 @@
 name: Bug report
 description: Report an issue that should be fixed
-labels: ["bug"]
 body:
   - type: textarea
     id: description

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -1,6 +1,5 @@
 name: 🚀 Feature Request
 description: Suggest an idea, feature, or enhancement
-labels: [discussion]
 title: "[FEATURE]:"
 
 body:

.github/ISSUE_TEMPLATE/question.yml

@@ -1,6 +1,5 @@
 name: Question
 description: Ask a question
-labels: ["question"]
 body:
   - type: textarea
     id: question