119: Disable "stale" workflow. (#120)

Remove the workflow that automatically marks PRs and issues as stale.

Reviewed-on: cerc-io/laconicd#120
Reviewed-by: David Boreham <dboreham@noreply.git.vdb.to>
Co-authored-by: Thomas E Lackey <telackey@bozemanpass.com>
Co-committed-by: Thomas E Lackey <telackey@bozemanpass.com>

.github/workflows/stale.yml

@@ -1,21 +0,0 @@
-name: "Close stale issues & pull requests"
-on:
-  schedule:
-    - cron: "0 0 * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/stale@v6
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          stale-pr-message: "This pull request has been automatically marked as stale because it has not had
-    recent activity. It will be closed in 7 days-before-close if no further activity occurs."
-          stale-issue-message: "This issue is stale because it has been open 45 days with no activity. Remove `Status: Stale` label or comment or this will be closed in 7 days."
-          days-before-stale: 45
-          days-before-close: 7
-          exempt-issue-labels: "Status: Blocked, Type: Bug, pinned, automerge"
-          exempt-pr-labels: "Status: Blocked, Type: Bug, pinned, automerge"
-          stale-pr-label: "Status: Stale"
-          stale-issue-label: "Status: Stale"