delete unused GitHub Action; fix CI badge

.github/workflows/ci.yml.deactivated

@@ -1,74 +0,0 @@
-# modified from https://github.com/jgm/pandoc/blob/master/.github/workflows/ci.yml
-name: CI
-
-on:
-  push:
-    branches:
-    - '**'
-    paths-ignore: []
-  pull_request:
-    paths-ignore: []
-
-jobs:
-  linux:
-
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        versions:
-          - ghc: '9.2.2'
-            cabal: '3.6'
-          - ghc: '9.0.2'
-            cabal: '3.6'
-          - ghc: '8.10.7'
-            cabal: '3.6'
-          - ghc: '8.8.4'
-            cabal: '3.6'
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Install recent cabal/ghc
-      uses: haskell/actions/setup@v1
-      with:
-        ghc-version: ${{ matrix.versions.ghc }}
-        cabal-version: ${{ matrix.versions.cabal }}
-
-    # declare/restore cached things
-    # caching doesn't work for scheduled runs yet
-    # https://github.com/actions/cache/issues/63
-
-    - name: Cache cabal global package db
-      id:   cabal-global
-      uses: actions/cache@v2
-      with:
-        path: |
-          ~/.cabal
-        key: ${{ runner.os }}-${{ matrix.versions.ghc }}-${{ matrix.versions.cabal }}-cabal-global-${{ hashFiles('cabal.project') }}
-
-    - name: Cache cabal work
-      id:   cabal-local
-      uses: actions/cache@v2
-      with:
-        path: |
-          dist-newstyle
-        key: ${{ runner.os }}-${{ matrix.versions.ghc }}-${{ matrix.versions.cabal }}-cabal-local
-
-    - name: Install dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install libbrotli-dev
-        cabal update
-        cabal build --dependencies-only --enable-tests --disable-optimization
-
-    - name: Build
-      run: |
-        cabal build --enable-tests --disable-optimization 2>&1 | tee build.log
-
-    - name: Test
-      run: |
-        cabal test --enable-tests --disable-optimization
-
-    - name: Haddock
-      run: |
-        cabal haddock --enable-tests --disable-optimization

README.md

@@ -1,7 +1,7 @@
 # hackage-server
 
 [![Build Status](https://travis-ci.org/haskell/hackage-server.png?branch=master)](https://travis-ci.org/haskell/hackage-server)
-[![Build status](https://github.com/haskell/hackage-server/actions/workflows/ci.yml/badge.svg)](https://github.com/haskell/hackage-server/actions/workflows/ci.yml)
+[![Build status](https://github.com/haskell/hackage-server/actions/workflows/haskell-ci.yml/badge.svg)](https://github.com/haskell/hackage-server/actions/workflows/haskell-ci.yml)
 [![Build status](https://github.com/haskell/hackage-server/actions/workflows/nix-shell.yml/badge.svg)](https://github.com/haskell/hackage-server/actions/workflows/nix-shell.yml)
 
 This is the `hackage-server` code. This is what powers <http://hackage.haskell.org>, and many other private hackage instances. The `master` branch is suitable for general usage. Specific policy and documentation for the central hackage instance exists in the `central-server` branch.