Update WPT css/css-anchor-position/parsing/position-try-options-parsing.html.
Updates the test to reflect the removal of the inset-area() function:
w3c/csswg-drafts@95984f6
Differential Revision: https://phabricator.services.mozilla.com/D212359
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1900208
gecko-commit: f1ce8cce80cebeb0345f933c7dfdce41cde8119c
gecko-reviewers: emilio