[GitHub Actions] Don't run tests or docker build if the only changes are to markdown files or static docs

[tdonohue]

References

• This is a port of the changes in [GitHub Actions] Don't run tests or docker build if the only changes are to markdown files DSpace#12787 to the frontend repository

Description

This small PR updates our GitHub actions to skip running any tests (both Unit and Integration) or Docker builds when a PR or commit only includes changes to Markdown files (*.md).

The reason for this PR is to streamline our ability to update Markdown files without triggering CI, e.g. with DSpace/DSpace#12739

This PR is nearly identical to DSpace/DSpace#12787, but it adds a few other files/directories to ignore

• docs/* - this is static documentation
• .editorconfig - this is only used by IDEs/editors
• .vscode/* - this is only used by VS Code IDE

[dspace-bot]

Git push to origin failed for dspace-8_x with exitcode 1

[dspace-bot]

Git push to origin failed for dspace-9_x with exitcode 1

[dspace-bot]

Successfully created backport PR for dspace-10_x:

• [Port dspace-10_x] [GitHub Actions] Don't run tests or docker build if the only changes are to markdown files or static docs #5972