Support version 0.23 of the Overmind CLI

In version 0.23 of the Overmind CLI we made a number of changes to the interface, not least of all was the renaming of the binary from ovm-cli to overmind. This version also makes all of the internal changes required for that to work

What's Changed

• Improve actions docs by @dylanratcliffe in #17
• Capture additional detail for the change by @DavidS-ovm in #18
• Fix behaviour for new branches. by @DavidS-ovm in #20
• Update actions/upload-artifact action to v4 by @renovate in #19
• Update actions/cache action to v4 by @renovate in #21
• Update robinraju/release-downloader action to v1.9 by @renovate in #22
• Update readme by @jameslaneovermind in #23
• Rename cli by @dylanratcliffe in #25

New Contributors

• @jameslaneovermind made their first contribution in #23

Full Changelog: v0.4.0...v0.5.0