[infra] disable the issue triage bot

Change-Id: I813ddb71ab617b640735fb0f4db98a43bd4f009e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/410863
Commit-Queue: Devon Carew <devoncarew@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>

.github/workflows/issue-triage.yml

@@ -1,51 +0,0 @@
-# A workflow to invoke a triage automation bot.
-#
-# For more information, see
-# https://github.com/dart-lang/ecosystem/tree/main/pkgs/sdk_triage_bot and
-# https://github.com/dart-lang/sdk/blob/main/docs/Triaging-Dart-SDK-issues.md.
-
-name: Triage Bot
-
-# Run when an issue is created.
-on:
-  issues:
-    types:
-      - opened
-
-# All permissions not specified are set to 'none'.
-permissions:
-  issues: write
-
-jobs:
-  triage_issues:
-    runs-on: ubuntu-latest
-
-    # Don't fail the workflow if there's an error below (for example, if we
-    # have problems modifying an issue's labels) as that would send a failure
-    # email to the user who created the issue.
-    continue-on-error: true
-
-    if: ${{ github.repository_owner == 'dart-lang' }}
-
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
-        with:
-          repository: dart-lang/ecosystem
-
-      - uses: dart-lang/setup-dart@e630b99d28a3b71860378cafdc2a067c71107f94
-
-      - run: dart pub get
-        working-directory: pkgs/sdk_triage_bot
-
-      # Delay 2 minutes to allow a grace period between opening or transferring
-      # an issue and assigning an area- label.
-      - name: sleep 2m
-        run: sleep 120
-
-      - name: triage issue
-        working-directory: pkgs/sdk_triage_bot
-        env:
-          ISSUE_URL: ${{ github.event.issue.html_url }}
-          GITHUB_TOKEN: ${{ secrets.DARTBOT_GITHUB_TOKEN }}
-          GOOGLE_API_KEY: ${{ secrets.GEMINI_API_KEY }}
-        run: dart bin/triage.dart $ISSUE_URL