[BUG] small issues with workflows

[SanderDevisscher]

increment version:

• [x] add grepl("new function", branch)
• [x] add grepl("new dataset", branch)
• [x] change concurrency to:

  concurrency:
  group: ${{ github.ref }}-${{ github.workflow }}  # Unique group for each workflow
  cancel-in-progress: true

build pkgdown site:

• [x] change concurrency