Update dependency org.gradle:gradle-tooling-api to v7.6.4

Author: renovate[bot]

server/build.gradle.kts

@@ -32,7 +32,7 @@ val date: String = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-
 val applicationName = "meghanada"
 
 val junitVersion = "5.8.2"
-val gradleVersion = "7.3.3"
+val gradleVersion = "7.6.4"
 val log4jVersion = "2.17.1"
 val xodusVersion = "1.3.232"
 val opencensusVersion = "0.30.0"