give it the access token like this maybe

azure-pipelines.yml

@@ -12,6 +12,7 @@ pool:
 variables:
   GRADLE_USER_HOME: $(Pipeline.Workspace)/.gradle
   BUILD_NUMBER: $(Build.BuildId)
+  ACCESS_TOKEN: $(System.AccessToken)
 
 steps:
 - task: Cache@2

build.gradle

@@ -149,7 +149,7 @@ publishing {
             name 'NaturesAura'
             credentials {
                 username "Azure DevOps Services"
-                password System.getenv("Azure DevOps Services_ENV_ACCESS_TOKEN")
+                password System.getenv("ACCESS_TOKEN")
             }
         }
     }