v6.4.0

What's Changed

• fix: SubAccounts implementation by @Tr00d in #426
• feat: implement Match on Result with void return type by @Tr00d in #417
• feat: dependency injection extension by @Tr00d in #418
• feat: add 4.8.1 and 7.0 in targeted frameworks by @Tr00d in #422
• ci: fix multiframework pipeline by @Tr00d in #425
• doc: readme badge fix by @Tr00d in #427

Full Changelog: v6.3.3...v6.4.0