7.44.0

What's Changed

• dart pub upgrade --major-versions --tighten by @sensuikan1973 in #760
• Now that closeDll is not experimental, delete the annotation by @sensuikan1973 in #761
• add @useResult annotation by @sensuikan1973 in #762
• dart pub upgrade --major-versions --tighten by @sensuikan1973 in #763
• Prepare for new Release 7.44.0 by @sensuikan1973 in #764

Full Changelog: 7.43.0...7.44.0