update all references to 1.0.0-beta.5

[philvarner]

Related Issue(s): n/a

Proposed Changes:

1. update version references to 1.0.0-beta.5

PR Checklist:

• This PR is made against the dev branch (all proposed changes except releases should be against dev, not master).
• This PR has no breaking changes.
• This PR does not make any changes to the core spec in the stac-spec directory (these are included as a subtree and should be updated directly in radiantearth/stac-spec)
• I have added my changes to the CHANGELOG or a CHANGELOG entry is not required.

[m-mohr]

Haven't checked in detail, but version numbers should be checked before release again anyways. So approving. There are a couple of unrelated formatting changes, which may lead to merge conflicts? Were they intended?

[philvarner]

Haven't checked in detail, but version numbers should be checked before release again anyways. So approving. There are a couple of unrelated formatting changes, which may lead to merge conflicts? Were they intended?

The formatting changes happen automatically with the VSCode plugin for markdown with tables. I usually just let them go though rather than fighting with what is otherwise a really great plugin.