v0.8.7

DispersiveShallowWater v0.8.7

Diff since v0.8.6

Merged pull requests:

• only one dependabot PR (#269) (@JoshuaLampert)
• Bump the all-github-actions group with 3 updates (#270) (@dependabot[bot])
• Ignore update of downgrade compat action in dependabot (#271) (@JoshuaLampert)
• CompatHelper: bump compat for TrixiTest to 0.2 for package test, (keep existing compat) (#273) (@github-actions[bot])
• Update affiliations for Zenodo archive (#274) (@JoshuaLampert)