DEV: Update CI workflows (#64)

Co-authored-by: discoursebuild <build@discourse.org>

Author: discoursebot

.github/workflows/plugin-linting.yml

@@ -15,10 +15,10 @@ jobs:
  runs-on: ubuntu-latest
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
 
  - name: Set up Node.js
- uses: actions/setup-node@v2
+ uses: actions/setup-node@v3
  with:
  node-version: 16
  cache: yarn

.github/workflows/plugin-tests.yml

@@ -31,13 +31,13 @@ jobs:
  build_type: ["backend", "frontend-legacy", "frontend"]
 
  steps:
- - uses: actions/checkout@v2
+ - uses: actions/checkout@v3
  with:
  repository: discourse/discourse
  fetch-depth: 1
 
  - name: Install plugin
- uses: actions/checkout@v2
+ uses: actions/checkout@v3
  with:
  path: plugins/${{ github.event.repository.name }}
  fetch-depth: 1
@@ -58,7 +58,7 @@ jobs:
  sudo -u postgres psql -c "CREATE ROLE $PGUSER LOGIN SUPERUSER PASSWORD '$PGPASSWORD';"
 
  - name: Bundler cache
- uses: actions/cache@v2
+ uses: actions/cache@v3
  with:
  path: vendor/bundle
  key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
@@ -83,7 +83,7 @@ jobs:
  run: echo "::set-output name=dir::$(yarn cache dir)"
 
  - name: Yarn cache
- uses: actions/cache@v2
+ uses: actions/cache@v3
  id: yarn-cache
  with:
  path: ${{ steps.yarn-cache-dir.outputs.dir }}
@@ -95,7 +95,7 @@ jobs:
  run: yarn install
 
  - name: Fetch app state cache
- uses: actions/cache@v2
+ uses: actions/cache@v3
  id: app-cache
  with:
  path: tmp/app-cache