ci: add coverage reporting #126

coverage

File	Coverage
All files	`68%`	✅
kairos-server/src/config.rs	`0%`	❌
kairos-server/src/errors.rs	`16%`	❌
kairos-test-utils/src/cctl/parsers.rs	`66%`	✅
kairos-test-utils/src/cctl.rs	`87%`	✅
kairos-cli/src/crypto/private_key.rs	`0%`	❌
kairos-cli/src/crypto/public_key.rs	`25%`	❌
kairos-cli/src/crypto/signer.rs	`0%`	❌
kairos-tx/src/asn.rs	`50%`	❌
kairos-tx/src/helpers.rs	`87%`	✅
kairos-server/tests/transactions.rs	`83%`	✅
kairos-server/src/routes/deposit.rs	`87%`	✅
kairos-server/src/routes/transfer.rs	`68%`	✅
kairos-server/src/routes/withdraw.rs	`88%`	✅

Minimum allowed coverage is 60%

Generated by 🐒 cobertura-action against 4f79d17