fix: update to post-v0.9 Transaction wire format

[mvines]

cc: solana-labs/solana#1418

[mvines]

Excellent. This PR failed because the fix for solana-labs/solana#1464 has not been published to the edge docker image yet.

[codecov-io]

Codecov Report

Merging #22 into dev will increase coverage by 0.34%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev      #22      +/-   ##
==========================================
+ Coverage   92.79%   93.14%   +0.34%     
==========================================
  Files          11       11              
  Lines         347      350       +3     
  Branches       40       39       -1     
==========================================
+ Hits          322      326       +4     
+ Misses         25       24       -1

Impacted Files	Coverage Δ
src/transaction.js	92.3% <100%> (+5.35%)	⬆️

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[mvines]

🎉 This PR is included in version 0.5.0 🎉

The release is available on:

• npm package (@dev dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

Because there has been no activity on this PR for 14 days since it was merged, it has been automatically locked. Please open a new issue if it requires a follow up.