Continuous integration of the Red Hat LSP4iJ plug-in

[anusreelakshmi934]

Part of #666

• Fixes Build lsp4ij plugin from a branch to use in the LTI automated tests  #758 - Build lsp4ij plugin from a branch to use in the LTI automated tests
  Checkout any branch of lsp4ij (main or any merge commit SHA) and use the buildPlugin command to create a ZIP file from it. Unzip the file and specify the path to the lib folder as a plugin dependency in build.gradle.

• Fixes Set up a GHA workflow as a cron job #756 - Set up a cron job to run every midnight
  Created a new YAML file named cronJob.yaml with the useLocalPlugin value set to true. This configuration ensures that the cron job will execute the LTI build with useLocalPlugin=true.

• Fixes Determine Parameterization for Running the LTI Build #783 - Parameterize LTI Build.
  Build and run tests using lsp4ij either (1) from the marketplace or (2) locally. Added a workflow_dispatch event so that we can check the useLocalPlugin as true or false.

• Fixes Run the LTI Tests against each open lsp4ij PR and lsp4ij main branch #757 - Fetch and checkout sha of each opened PR in lsp4ij and run LTI builds.
  Added a job in the cronJob.yaml file to Extract merge_commit_shas of all the opened PRs in lsp4ij which are not in draft state. Created an array of sha values.
  Run the LTI Tests for each extracted SHA in parallel, using a matrix strategy to handle multiple SHAs concurrently.
  Also Run the LTI Tests against lsp4ij main branch

[anusreelakshmi934]

Tested Workflow using local lsp4ij - https://github.com/anusreelakshmi934/liberty-tools-intellij/actions/runs/9677013839/job/26697778265

[mrglavas]

Thanks for addressing my comments from the previous PRs. Looks good!

[aparnamichael]

Looks good.

[TrevCraw]

@anusreelakshmi934 Changes look good, but I think due to a recent PR merge from @aparnamichael (#849), there are now conflicts that need to be resolved.

[vaisakhkannan]

Looks good to me. Thanks