Update 2.14 CI to test against kotlin-core 1.8 too (#645)

Author: cowtowncoder

.github/workflows/main.yml

@@ -25,7 +25,7 @@ jobs:
       fail-fast: false
       matrix:
         java_version: ['8', '11', '17']
-        kotlin_version: ['1.4.32', '1.5.32', '1.6.21', '1.7.20']
+        kotlin_version: ['1.4.32', '1.5.32', '1.6.21', '1.7.20', '1.8.10']
         os: ['ubuntu-20.04']
     env:
       JAVA_OPTS: "-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
@@ -52,7 +52,7 @@ jobs:
       run: ./mvnw -B -q -ff -ntp -Dversion.kotlin=${{ matrix.kotlin_version }} surefire:test
     - name: Extract project Maven version
       id: projectVersion
-      run: echo "version=$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate -DforceStdout -Dexpression=project.version -q)" >> $GITHUB_OUTPUT
+      run: echo "version=$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.3.0:evaluate -DforceStdout -Dexpression=project.version -q)" >> $GITHUB_OUTPUT
     - name: Deploy snapshot
       if: github.event_name != 'pull_request' && matrix.java_version == '8' && matrix.kotlin_version == '1.5.32' && endsWith(steps.projectVersion.outputs.version, '-SNAPSHOT')
       env:

README.md

@@ -130,7 +130,7 @@ println(arrayNode.toString()) // ["foo",true,1,1.0,"YmFy"]
 Different `kotlin-core` versions are supported by different Jackson Kotlin module minor versions.
 Here is an incomplete list of supported versions:
 
-* Jackson 2.14.x: Kotlin-core 1.4 - 1.7
+* Jackson 2.14.x: Kotlin-core 1.4 - 1.8
 * Jackson 2.13.x: Kotlin-core 1.4 - 1.7
 
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