Update build.yml: fix space in env variable

Author: drpy

.github/workflows/build.yml

@@ -22,7 +22,7 @@ jobs:
     - name: maven-settings-action
       uses: s4u/maven-settings-action@894661b3ddae382f1ae8edbeab60987e08cf0788 # commit hash references to v4.0.0
       with:
-        servers: '[{"id": "mulesoft-ee-releases", "username": "${env.MULE_REPO_USER}", "password": "${env.MULE_REPO_PASSWORD }"}]'
+        servers: '[{"id": "mulesoft-ee-releases", "username": "${env.MULE_REPO_USER}", "password": "${env.MULE_REPO_PASSWORD}"}]'
         repositories: '[{"id": "mulesoft-ee-releases", "name": "MuleSoft EE Releases", "url": "https://repository.mulesoft.org/nexus-ee/content/repositories/releases-ee/"}]'
 
     - name: Build and test