dev(ci): replace add-to-project workflow

Ref: doomemacs/ci@f2a2ad43f1f9

Author: hlissner

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -2,6 +2,7 @@
 name: 📝 Bug Report
 description: Report something that isn't working as intended
 labels: ["is:bug", "needs-triage"]
+projects: ["doomemacs/2"]
 body:
 - type: markdown
  attributes:

.github/ISSUE_TEMPLATE/request.yml

@@ -2,6 +2,7 @@
 name: 📝 Feature request
 description: Request a change or new core feature
 labels: ["is:feature", "needs-triage"]
+projects: ["doomemacs/2"]
 body:
 - type: textarea
  attributes: