Bump version reported by CLI to current version (7.0.0). (#212)

Co-authored-by: Maxwell Elliott <[email protected]>

Author: OniOni

cli/src/main/kotlin/com/bazel_diff/cli/VersionProvider.kt

@@ -4,6 +4,6 @@ import picocli.CommandLine.IVersionProvider
 
 class VersionProvider : IVersionProvider {
     override fun getVersion(): Array<String> {
-        return arrayOf("5.0.0")
+        return arrayOf("7.0.0")
     }
 }