Update code coverage link

Author: cowtowncoder

README.md

@@ -18,7 +18,7 @@ Naming of classes uses word 'JSON' in many places even though there is no actual
 | Artifact | [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.fasterxml.jackson.core/jackson-databind/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.fasterxml.jackson.core/jackson-databind) |
 | OSS Sponsorship | [![Tidelift](https://tidelift.com/badges/package/maven/com.fasterxml.jackson.core:jackson-databind)](https://tidelift.com/subscription/pkg/maven-com-fasterxml-jackson-core-jackson-databind?utm_source=maven-com-fasterxml-jackson-core-jackson-databind&utm_medium=referral&utm_campaign=readme) |
 | Javadocs | [![Javadoc](https://javadoc.io/badge/com.fasterxml.jackson.core/jackson-databind.svg)](http://www.javadoc.io/doc/com.fasterxml.jackson.core/jackson-databind) |
-| Code coverage (2.17) | [![codecov.io](https://codecov.io/github/FasterXML/jackson-databind/coverage.svg?branch=2.17)](https://codecov.io/github/FasterXML/jackson-databind?branch=2.17) |
+| Code coverage (2.18) | [![codecov.io](https://codecov.io/github/FasterXML/jackson-databind/coverage.svg?branch=2.18)](https://codecov.io/github/FasterXML/jackson-databind?branch=2.18) |
 | OpenSSF Score | [![OpenSSF  Scorecard](https://api.securityscorecards.dev/projects/github.com/FasterXML/jackson-databind/badge)](https://securityscorecards.dev/viewer/?uri=github.com/FasterXML/jackson-databind) |
 
 # Get it!