GHA: remove the hacktoberfest label action

No one cares about hacktoberfest anymore.

Closes #18849

.github/workflows/hacktoberfest-accepted.yml

@@ -1,71 +0,0 @@
-# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
-#
-# SPDX-License-Identifier: curl
-
-name: 'Hacktoberfest'
-
-'on':
-  # this must not ever run on any other branch than master
-  push:
-    branches:
-      - master
-
-concurrency:
-  # this should not run in parallel, so just run one at a time
-  group: ${{ github.workflow }}
-
-permissions: {}
-
-jobs:
-  # add hacktoberfest-accepted label to PRs opened starting from September 30th
-  # till November 1st which are closed via commit reference from master branch.
-  merged:
-    name: 'Add hacktoberfest-accepted label'
-    runs-on: ubuntu-latest
-    permissions:
-      issues: write          # To edit labels on PRs
-      pull-requests: write   # To edit labels on PRs
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-          fetch-depth: 100
-
-      - name: 'Check whether repo participates in Hacktoberfest'
-        id: check
-        env:
-          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
-        run: |
-          gh config set prompt disabled && echo "label=$(
-            gh repo view --json repositoryTopics --jq '.repositoryTopics[].name' | grep '^hacktoberfest$')" >> "$GITHUB_OUTPUT"
-
-      - name: 'Search relevant commit message lines starting with Closes/Merges'
-        if: ${{ steps.check.outputs.label == 'hacktoberfest' }}
-        env:
-          GITHUB_EVENT_BEFORE: '${{ github.event.before }}'
-          GITHUB_EVENT_AFTER: '${{ github.event.after }}'
-        run: |
-          git log --format=email "${GITHUB_EVENT_BEFORE}..${GITHUB_EVENT_AFTER}" | \
-            grep -Ei '^Close[sd]? ' | sort | uniq | tee log
-
-      - name: 'Search for number-based PR references'
-        if: ${{ steps.check.outputs.label == 'hacktoberfest' }}
-        env:
-          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
-        run: |
-          grep -Eo '#([0-9]+)' log | cut -d# -f2 | sort | uniq | xargs -t -n1 -I{} \
-            gh pr view {} --json number,createdAt \
-              --jq '{number, opened: .createdAt} | [.number, .opened] | join(":")' | tee /dev/stderr | \
-            grep -Eo '^([0-9]+):[0-9]{4}-(09-30T|10-|11-01T)' | cut -d: -f1 | sort | uniq | xargs -t -n1 -I {} \
-              gh pr edit {} --add-label 'hacktoberfest-accepted'
-
-      - name: 'Search for URL-based PR references'
-        if: ${{ steps.check.outputs.label == 'hacktoberfest' }}
-        env:
-          GH_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
-        run: |
-          grep -Eo 'github.com/(.+)/(.+)/pull/([0-9]+)' log | sort | uniq | xargs -t -n1 -I{} \
-            gh pr view 'https://{}' --json number,createdAt \
-              --jq '{number, opened: .createdAt} | [.number, .opened] | join(":")' | tee /dev/stderr | \
-            grep -Eo '^([0-9]+):[0-9]{4}-(09-30T|10-|11-01T)' | cut -d: -f1 | sort | uniq | xargs -t -n1 -I {} \
-              gh pr edit {} --add-label 'hacktoberfest-accepted'