Updating the CI environment

[ynishimura]

Overview

Update Node.js version from 14 to 18 in GitHub Actions to resolve compatibility issues with the Object.hasOwn method.

Changes

• Update the libraries in use
• Update Node.js version from 14 to 18
• Modified npm install command to use --legacy-peer-deps flag

Background

The following error occurs when running tests in the current CI environment:

 1) #compileStateMachines
       should validate definition and pass:
     TypeError: Object.hasOwn is not a function
      at new JSONPath (node_modules/jsonpath-plus/dist/index-node-cjs.cjs:1530:22)
      at JSONPath (node_modules/jsonpath-plus/dist/index-node-cjs.cjs:1509:14)
      at missingTransitionTargetErrors (node_modules/asl-validator/dist/src/checks/missing-transition-target-errors.js:9:34)
      at validator (node_modules/asl-validator/dist/src/validator.js:35:104)
      at /home/runner/work/serverless-step-functions/serverless-step-functions/lib/deploy/stepFunctions/compileStateMachines.js:119:45
      at Array.forEach (<anonymous>)
      at ServerlessStepFunctions.compileStateMachines (lib/deploy/stepFunctions/compileStateMachines.js:94:34)
      at Context.<anonymous> (lib/deploy/stepFunctions/compileStateMachines.test.js:1394:29)
      at processImmediate (internal/timers.js:464:21)

Impact

• Changes only affect CI/CD environment
• No impact on application code