chore: prepare release 8.0.0

Author: clemstoquart

README.md

@@ -20,9 +20,6 @@ It also requires a Spring Boot **MVC** web application.
 |     2.6     |      7.x       |  1.6   |
 |     2.5     |      5.x       |  1.5   |
 |     2.4     |      4.x       |  1.4   |
-|     2.3     |      3.x       |  1.3   |
-|     2.2     |      2.x       |  1.3   |
-|     2.1     |      1.x       |  1.3   |
 
 Other combinations might work, but they're not supported.
 

build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
   id("ekino.oss.test")
 }
 
-version = "8.0.0-SNAPSHOT"
+version = "8.0.0"
 
 repositories {
   mavenCentral()