Empty catch swallows exceptions in IpcNamedLock.tryUnlock()

[elharo]

Affected version: HEAD

File: maven-resolver-named-locks-ipc/src/main/java/org/eclipse/aether/named/ipc/IpcNamedLock.java:108-115

private void tryUnlock(String contextId) {
    try {
        client.unlock(contextId);
    } catch (Exception e) {
        // Best-effort cleanup
    }
}

All exceptions from unlock() during timeout cleanup are silently discarded. While documented as intentional, this can mask real IO/connectivity issues.

Originally reported in #1944.