meta: replace API docs issue template with form

All other issue templates have been moved to forms, which seems to do a
good job of reducing spam issues.

PR-URL: nodejs#41348
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Qingyu Deng <i@ayase-lab.com>

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

@@ -0,0 +1,17 @@
+name: "\U0001F4D7 Open an issue regarding the Node.js API reference docs"
+description: Let us know about any problematic API reference documents
+labels: ["doc"]
+title: 'doc: <title>'
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for wanting to make nodejs.org better!
+
+        Please fill in as much of the following form as you're able.
+  - type: input
+    attributes:
+      label: Affected URL(s)
+  - type: textarea
+    attributes:
+      label: Explanation of the problem