Leftover changes for build upgrade

Author: jatin-bhateja

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        version: [ 18, 19, 20, 21, 22, 23 ]
+        version: [ 24 ]
         vector-length: [ 256, 512 ]
 
     steps:

.github/workflows/publish.yml

@@ -17,11 +17,11 @@ jobs:
 
       - uses: gradle/actions/wrapper-validation@v3
 
-      - name: Set up JDK 18
+      - name: Set up JDK 24
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 18
+          java-version: 24
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3

README.md

@@ -73,7 +73,7 @@ Please remember about specifying the desired version.
 Note that simdjson-java follows the [SemVer specification](https://semver.org/), which means, for example, that a major 
 version of zero indicates initial development, so the library's API should not be considered stable.
 
-We require Java 18 or better.
+We require Java 24 or better.
 
 ## Benchmarks