Update to latest action versions

[sgollapudi77]

GH actions gives warning The following actions uses node12 which is deprecated and will be forced to run on node16 due to the usage of older versions of GH actions in our workflow files. Upgrading the package @actions/checkout to v3(newer version). Reference: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Workflow with older version of action/checkout: https://github.com/sgollapudi77/nodeJsExpressHelloworld/actions/runs/6276548930

Workflow with latest action: https://github.com/sgollapudi77/nodeJsExpressHelloworld/actions/runs/6296899297

[surenderssm]

Let's add more context in the PR description.