chore: add hacktoberfest label (#461)

Author: Dun-sin

.github/ISSUE_TEMPLATE/bug.yml

@@ -1,7 +1,7 @@
 name: 🐛 Bug
 description: Report an issue to help improve the project.
 title: "[BUG] <what went wrong>"
-labels: ["bug"]
+labels: ["bug", "hacktoberfast"]
 body:
   - type: textarea
     id: description

.github/ISSUE_TEMPLATE/doc_issue.yml

@@ -1,7 +1,7 @@
 name: 📄 Documentation issue
 description: Found an issue in the documentation? You can use this one!
 title: "[DOCS] <what do you have to add>"
-labels: ["documentation"]
+labels: ["documentation", "hacktoberfest"]
 body:
   - type: textarea
     id: description

.github/ISSUE_TEMPLATE/features.yml

@@ -1,7 +1,7 @@
 name: 💡 General Feature Request
 description: Have a new idea/feature for this project? Would love to hear it!
 title: "[FEATURE] <what do you have to add>"
-labels: ["feature"]
+labels: ["feature","hacktoberfest"]
 body:
   - type: textarea
     id: description

.github/ISSUE_TEMPLATE/other.yml

@@ -1,6 +1,7 @@
 name: Other
 description: Use this for any other issues. Please do NOT create blank issues
 title: "[OTHER]"
+labels: ["hacktoberfest"]
 body:
   - type: markdown
     attributes: