`LtInconsistentArgs` throws `NoSuchElementException` when parent object lacks `@name` attribute

Getting this:

Caused by: java.util.NoSuchElementException: No value present
    at java.util.Optional.get (Optional.java:143)
    at org.eolang.lints.LtInconsistentArgs.parentTree (LtInconsistentArgs.java:296)
    at org.eolang.lints.LtInconsistentArgs.voidFqn (LtInconsistentArgs.java:279)
    at org.eolang.lints.LtInconsistentArgs.lambda$scanUsages$5 (LtInconsistentArgs.java:129)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept (ForEachOps.java:184)
    at java.util.stream.ReferencePipeline$3$1.accept (ReferencePipeline.java:197)
    at java.util.ArrayList.forEach (ArrayList.java:1596)
    at java.util.stream.SortedOps$RefSortingSink.end (SortedOps.java:395)
    at java.util.stream.Sink$ChainedReference.end (Sink.java:261)
    at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:510)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:499)
    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential (ForEachOps.java:151)
    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential (ForEachOps.java:174)
    at java.util.stream.AbstractPipeline.evaluate (AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.forEach (ReferencePipeline.java:596)
    at org.eolang.lints.LtInconsistentArgs.lambda$scanUsages$6 (LtInconsistentArgs.java:122)
    at java.util.HashMap$Values.forEach (HashMap.java:1073)
    at java.util.Collections$UnmodifiableCollection.forEach (Collections.java:1116)
    at org.eolang.lints.LtInconsistentArgs.scanUsages (LtInconsistentArgs.java:118)
    at org.eolang.lints.LtInconsistentArgs.defects (LtInconsistentArgs.java:48)
    at org.eolang.lints.LtInconsistentArgs.defects (LtInconsistentArgs.java:37)
    at org.eolang.lints.LtUnlintNonExistingDefectWpa.lambda$existingDefects$10 (LtUnlintNonExistingDefectWpa.java:140)
    at java.lang.Iterable.forEach (Iterable.java:75)
    at org.eolang.lints.LtUnlintNonExistingDefectWpa.existingDefects (LtUnlintNonExistingDefectWpa.java:137)
    at org.eolang.lints.LtUnlintNonExistingDefectWpa.defects (LtUnlintNonExistingDefectWpa.java:74)
    at org.eolang.lints.LtUnlintNonExistingDefectWpa.defects (LtUnlintNonExistingDefectWpa.java:32)
    at org.eolang.lints.LtWpaUnlint.defects (LtWpaUnlint.java:42)
    at org.eolang.lints.LtWpaUnlint.defects (LtWpaUnlint.java:19)
    at org.eolang.lints.Program.defects (Program.java:126)
    at org.eolang.maven.MjLint.lintAll (MjLint.java:177)
    at org.eolang.maven.MjLint.lint (MjLint.java:90)
    at org.eolang.maven.MjLint.exec (MjLint.java:62)
    at org.eolang.maven.MjSafe.lambda$execWithTimeout$6 (MjSafe.java:598)
    at java.util.concurrent.FutureTask.run (FutureTask.java:317)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1144)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:642)
    at java.lang.Thread.run (Thread.java:1583)

Looks like the problem is here:

while (!"object".equals(current.node().getNodeName())) {
    tree.add(current.attribute("name").text().get());
}

If the object does not have @name, then we are getting NoSuchElementException. Let's fix this