Prepare for 2.8 release

Author: erichaagdev

Gradle.md

@@ -64,7 +64,7 @@ The build validation scripts are compatible with a large range of Gradle version
 Use the following command to download and unpack the build validation scripts for Gradle to the current directory:
 
 ```bash
-curl -s -L -O https://github.com/gradle/develocity-build-validation-scripts/releases/download/v2.7.3/develocity-gradle-build-validation-2.7.3.zip && unzip -q -o develocity-gradle-build-validation-2.7.3.zip
+curl -s -L -O https://github.com/gradle/develocity-build-validation-scripts/releases/download/v2.8/develocity-gradle-build-validation-2.8.zip && unzip -q -o develocity-gradle-build-validation-2.8.zip
 ```
 
 ## Structure

Maven.md

@@ -64,7 +64,7 @@ The build validation scripts are compatible with a large range of Maven versions
 Use the following command to download and unpack the build validation scripts for Maven to the current directory:
 
 ```bash
-curl -s -L -O https://github.com/gradle/develocity-build-validation-scripts/releases/download/v2.7.3/develocity-maven-build-validation-2.7.3.zip && unzip -q -o develocity-maven-build-validation-2.7.3.zip
+curl -s -L -O https://github.com/gradle/develocity-build-validation-scripts/releases/download/v2.8/develocity-maven-build-validation-2.8.zip && unzip -q -o develocity-maven-build-validation-2.8.zip
 ```
 
 ## Structure

release/version.txt

@@ -1 +1 @@
-2.7.4
+2.8