ci: suppress download progress in unmanaged dependency check (#2424)

Author: suztomo

java-shared-dependencies/unmanaged-dependency-check/src/test/resources/local-install.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
-mvn install -f shared-dependency-pom.xml
-mvn install -f gax-example-pom.xml
-mvn install -f nested-dependency-pom.xml
-mvn install -f transitive-dependency-pom.xml
-mvn install -f google-internal-artifact-test-case-pom.xml
+mvn install -B -ntp -f shared-dependency-pom.xml
+mvn install -B -ntp -f gax-example-pom.xml
+mvn install -B -ntp -f nested-dependency-pom.xml
+mvn install -B -ntp -f transitive-dependency-pom.xml
+mvn install -B -ntp -f google-internal-artifact-test-case-pom.xml