Release notes

• BREAKING CHANGE PyScript now uses a top level await by default. You used to have to include the async flag to enable this. Now, instead, use async="false" to revert the behaviour back to the old default behaviour. We made this change because many folks were await-ing functions and missing or not realising the need for the (old) async attribute. Hence the flip in behaviour (#2134).
• We've fixed a bug where async methods attached to JavaScript references did not return the expected result (#2136).
• Updated to latest versions of various dependencies.