Update plugin com.gradle.enterprise to v3.15.1 (#1011)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| com.gradle.enterprise | `3.15` -> `3.15.1` |
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|
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|
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|
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settings.gradle.kts

@@ -215,7 +215,7 @@ dependencyResolutionManagement {
 }
 
 plugins {
-  id("com.gradle.enterprise") version "3.15"
+  id("com.gradle.enterprise") version "3.15.1"
   id("com.dropbox.focus") version "0.5.1"
 }