meta: use plain emojis instead of escape sequences

Refs: https://github.com/nodejs/node/issues/41987

PR-URL: https://github.com/nodejs/node/pull/41989
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Beth Griggs <bgriggs@redhat.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Akhil Marsonya <akhil.marsonya27@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/ISSUE_TEMPLATE/1-bug-report.yml

@@ -1,4 +1,4 @@
-name: \U0001F41B Bug report
+name: 🐛 Bug report
 description: Create a report to help us improve
 body:
   - type: markdown

.github/ISSUE_TEMPLATE/2-feature-request.yml

@@ -1,4 +1,4 @@
-name: \U0001F680 Feature request
+name: 🚀 Feature request
 description: Suggest an idea for this project
 labels: [feature request]
 body:

.github/ISSUE_TEMPLATE/3-api-ref-docs-problem.yml

@@ -1,4 +1,4 @@
-name: \U0001F4D7 Open an issue regarding the Node.js API reference docs
+name: 📗 Open an issue regarding the Node.js API reference docs
 description: Let us know about any problematic API reference documents
 labels: [doc]
 body: