build: set stale action back to running nightly

I manually ran over  the last number of weeks so that
we did not mark all of the stale isssues all at once.
We are not caught up so we can go to running daily.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #42549
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Tierney Cyren <hello@bnb.im>
Reviewed-By: James M Snell <jasnell@gmail.com>

.github/workflows/close-stale-feature-requests.yml

@@ -1,12 +1,9 @@
 name: Close stale feature requests
 on:
   workflow_dispatch:
-    inputs:
-      daysBeforeStale:
-        description: Idle number of days before marking feature requests stale
-        required: true
-        default: 906
-        type: number
+  schedule:
+    # Run every day at 1:00 AM UTC.
+    - cron: 0 1 * * *
 
 # yamllint disable rule:empty-lines
 env:
@@ -39,7 +36,7 @@ jobs:
       - uses: actions/stale@v4
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          days-before-stale: ${{ github.event.inputs.daysBeforeStale }}
+          days-before-stale: 180
           days-before-close: 30
           stale-issue-label: stale
           close-issue-message: ${{ env.CLOSE_MESSAGE }}