druid-ranger-security failure when building distribution

I'm seeing the following when building a distribution tarball from master with `mvn clean && mvn install -DskipTests=true -Dtar -T 8`:

```

13:57:40.592 [main] ERROR org.apache.druid.cli.PullDependencies - Unable to resolve artifacts for [org.apache.druid.extensions:druid-ranger-security:jar:0.19.0-SNAPSHOT (runtime) -> [] < [ (https://repo1.maven.org/maven2/, releases+snapshots)]].
org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.apache.druid.extensions:druid-ranger-security:jar:0.19.0-SNAPSHOT in (https://repo1.maven.org/maven2/)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384) ~[aether-impl-0.9.0.M2.jar:?]
at io.tesla.aether.internal.DefaultTeslaAether.resolveArtifacts(DefaultTeslaAether.java:289) ~[tesla-aether-0.0.5.jar:0.0.5]
at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:404) [druid-services-0.19.0-SNAPSHOT.jar:0.19.0-SNAPSHOT]
at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:362) [druid-services-0.19.0-SNAPSHOT.jar:0.19.0-SNAPSHOT]
at org.apache.druid.cli.PullDependencies.run(PullDependencies.java:308) [druid-services-0.19.0-SNAPSHOT.jar:0.19.0-SNAPSHOT]
at org.apache.druid.cli.Main.main(Main.java:113) [druid-services-0.19.0-SNAPSHOT.jar:0.19.0-SNAPSHOT]
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.apache.druid.extensions:druid-ranger-security:jar:0.19.0-SNAPSHOT in (https://repo1.maven.org/maven2/)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459) ~[aether-impl-0.9.0.M2.jar:?]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) ~[aether-impl-0.9.0.M2.jar:?]
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ~[aether-impl-0.9.0.M2.jar:?]
... 5 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.apache.druid.extensions:druid-ranger-security:jar:0.19.0-SNAPSHOT in (https://repo1.maven.org/maven2/)
at io.tesla.aether.connector.AetherRepositoryConnector$2.wrap(AetherRepositoryConnector.java:828) ~[aether-connector-okhttp-0.0.9.jar:0.0.9]
at io.tesla.aether.connector.AetherRepositoryConnector$2.wrap(AetherRepositoryConnector.java:824) ~[aether-connector-okhttp-0.0.9.jar:0.0.9]
at io.tesla.aether.connector.AetherRepositoryConnector$GetTask.flush(AetherRepositoryConnector.java:619) ~[aether-connector-okhttp-0.0.9.jar:0.0.9]
at io.tesla.aether.connector.AetherRepositoryConnector.get(AetherRepositoryConnector.java:238) ~[aether-connector-okhttp-0.0.9.jar:0.0.9]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:535) ~[aether-impl-0.9.0.M2.jar:?]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:436) ~[aether-impl-0.9.0.M2.jar:?]
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) ~[aether-impl-0.9.0.M2.jar:?]
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ~[aether-impl-0.9.0.M2.jar:?]
... 5 more
```

Start by reproducing the failure with `mvn clean && mvn install -DskipTests=true -Dtar -T 8`, then inspect `org.apache.druid.cli.PullDependencies` and the build configuration for `druid-ranger-security`. Done means the distribution tarball builds without attempting to resolve the unreleased snapshot from Maven Central.

Written by the indexing model from the issue text.