Bump com.gradle.enterprise from 3.12.3 to 3.12.6

Bumps com.gradle.enterprise from 3.12.3 to 3.12.6.

---
updated-dependencies:
- dependency-name: com.gradle.enterprise
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

settings.gradle

@@ -6,7 +6,7 @@ pluginManagement {
 }
 
 plugins {
-    id "com.gradle.enterprise" version "3.12.3"
+    id "com.gradle.enterprise" version "3.12.6"
     id "io.spring.ge.conventions" version "0.0.7"
 }