chore(repo): fix tags in issue templates

Author: almostSouji

.github/ISSUE_TEMPLATE/branching-content.md

@@ -1,7 +1,7 @@
 ---
 name: Branching Content
 about: Content is missing for a certain version and requires branching sections or code samples
-labels: 'enhancement','branching'
+labels: 'type: enhancement','meta: branching'
 
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.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-labels: 'bug'
+labels: 'type: bug'
 
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.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,7 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-labels: 'request'
+labels: 't: request'
 
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