v0.16.3

Patch release for BigInt fix (#787) & minor changes

Changes

chore(deps): bump golang from 1.19.0 to 1.19.1 in /test/integration (#769) @dependabot
chore(deps): bump amannn/action-semantic-pull-request from 4.5.0 to 4.6.0 (#774) @dependabot
ci(workflows): use go 1.19 (#781) @s-takehana
chore(project): fix dependabot dependency name (#780) @s-takehana
chore(deps): bump golang from 1.19.1 to 1.19.2 in /test/integration (#775) @dependabot
chore(deps): bump amannn/action-semantic-pull-request from 4.6.0 to 5.0.2 (#779) @dependabot
chore(deps): bump github.com/stretchr/testify from 1.8.0 to 1.8.1 (#782) @dependabot
chore: gitignore & git message validation (#788) @steebchen
fix(types): add MarshalJSON method for BigInt (#790) @steebchen