Replace testing on java 19 with testing on java 20

Closes pinterest#1888

.github/workflows/publish-release-build.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 19
+          java-version: 20
       - uses: gradle/gradle-build-action@v2
         with:
           gradle-home-cache-cleanup: true

.github/workflows/publish-snapshot-build.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 19
+          java-version: 20
       - uses: gradle/gradle-build-action@v2
         with:
           gradle-home-cache-cleanup: true

.github/workflows/pull-request-with-code.yml

@@ -31,7 +31,7 @@ jobs:
         os: [ ubuntu-latest, windows-latest ]
         # When changing the list of JDK versions, the build configuration has to be changed by a repository admin. See
         # https://github.com/pinterest/ktlint/pull/1787#issuecomment-1409074092
-        jdk: [ 8, 11, 17, 19 ]
+        jdk: [ 8, 11, 17, 20 ]
         exclude: # windows with JDK8 are *really* flaky
           - os: windows-latest
             jdk: 8

CHANGELOG.md

@@ -19,6 +19,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 * Update dependency gradle to v8.2.1 ([#2122](https://github.com/pinterest/ktlint/pull/2122))
 * Update dependency org.codehaus.janino:janino to v3.1.10  ([#2110](https://github.com/pinterest/ktlint/pull/2110))
 * Update dependency com.google.jimfs:jimfs to v1.3.0 ([#2112](https://github.com/pinterest/ktlint/pull/2112))
+* Build the project with Java 20, run test on Java 8, 11, 17 and 20 ([#1888](https://github.com/pinterest/ktlint/issues/1888))
 
 ## [0.50.0] - 2023-06-29