feat: bump to 8.0.0 (#1545)

Bumps all packages and their parse5 dependencies to 8.0.0.

This isn't strictly necessary as some packages will continue to work
with 7.x, but it may be easier for maintenance in future to draw the
line.

chore: bump to version 7.3.0 (#1478)

Bumps parse5 to 7.3.0, and parse5-html-rewriting-stream to 7.1.0

chore: bump parse5 to 7.2.1 (#1314)

chore: bump version to 7.2.0 (#1291)

Release includes parse5 and parse5-htmlparser2-tree-adapter.

Bump version to v7.1.2 (#733)

Bump parse5 to 7.1.0 (#662)

chore(package): Bump versions to 7.0.0 (#509)