add --save-dev flag to update version in package.json

Author: whummer

.github/workflows/ci.yml

@@ -22,6 +22,10 @@ jobs:
  with:
  node-version: '18'
 
+ - name: Get initial sls version
+ run: |
+ npm info serverless version
+
  - name: Cache node modules
  uses: actions/cache@v3
  env:
@@ -41,17 +45,18 @@ jobs:
 
  - name: Install deps
  run: |
- npm ci
+ npm install
 
  - name: Update SLS version to v3
  if: ${{ matrix.sls-major-version == '3' }}
  run: |
- npm install serverless@3
+ npm install --save-dev serverless@3
  
  - name: Check installed version
  env:
  EXPECTED_SLS_MAJOR_VERSION: ${{ matrix.sls-major-version }}
  run : |
+ cat package.json
  installed_sls_version=$(npm info serverless version)
  echo "installed serverless version: ${installed_sls_version}"
  if [ "${installed_sls_version:0:1}" != ${EXPECTED_SLS_MAJOR_VERSION} ]; then