migrate from circleci to gha

[Zlaticanin]

This PR migrates this plugin from CircleCI to Github Actions. We do the following:

• remove the .circleci directory
  • this will cause the CircleCI Pipeline to fail until we disable the project in the CircleCI UI
• add a .go-version file so that we can reference it from other files
  • this is required by the Run Tests common workflow
• add a Run Acceptance Tests workflow
  • run the tests with make testacc and
  • build the binary with make dev
• reuse the common Lint Github Actions Workflows from vault-workflows-common
  • this is a linter for Github actions themselves
  • it will detect problems with our github actions files
• reuse common "Go Checks" workflow
  • lint code with gofumt
  • ensure go mod is tidy
• update the Jira Sync action to reuse our common workflow from vault-workflows-common
• add dependabot
• add a CHANGELOG.md

[fairclothjm]

Thanks! 👍

[Zlaticanin]

Thank you so much! @fairclothjm