Update ref to use booleanExpression

[tschaub]

See opengeospatial/ogcapi-features@c1c5801.

Related Issue(s):

• CI validate failing due to booleanValueExpression -> booleanExpression change #301

Proposed Changes:

1. Use booleanExpression instead of booleanValueExpression

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)
• A CHANGELOG entry is not required.

[philvarner]

updated this to be against dev instead of master

[tschaub]

updated this to be against dev instead of master

Thanks. I based the branch on dev, but forgot that GitHub defaults to the default branch.

[philvarner]

That's why we added it to the PR template checklist 😄 😢

[tschaub]

That's why we added it to the PR template checklist 😄 😢

Yeah, that has been enough of a reminder for me to rebase on dev after initially opening up a pull request with a branch based on master. Still, after I go through all that, I forget to also change the base branch in GitHub (I probably wrongly assumed it could figure out that my branch was based on dev and not master).