Update lucene version

[LoayGhreeb]

Follow-up to: #11542
Update the Lucene version. If any changes to the index require reindexing (e.g., new/removed/renamed fields, analyzer changes), this version number should be updated.
Changing the version will change the index path:

jabref/src/main/java/org/jabref/gui/desktop/os/NativeDesktop.java

Lines 100 to 105 in 6af91b9

	public Path getFulltextIndexBaseDirectory() {
	return Path.of(AppDirsFactory.getInstance()
	.getUserDataDir(OS.APP_DIR_APP_NAME,
	"lucene" + File.separator + SearchFieldConstants.VERSION,
	OS.APP_DIR_APP_AUTHOR));
	}

The old index will be removed

jabref/src/main/java/org/jabref/Launcher.java

Lines 208 to 229 in 8a0edc2

	private static void clearOldSearchIndices() {
	Path currentIndexPath = OS.getNativeDesktop().getFulltextIndexBaseDirectory();
	Path appData = currentIndexPath.getParent();
	try {
	Files.createDirectories(currentIndexPath);
	} catch (IOException e) {
	LOGGER.error("Could not create index directory {}", appData, e);
	}
	try (DirectoryStream<Path> stream = Files.newDirectoryStream(appData)) {
	for (Path path : stream) {
	if (Files.isDirectory(path) && !path.toString().endsWith("ssl") && path.toString().contains("lucene")
	&& !path.equals(currentIndexPath)) {
	LOGGER.info("Deleting out-of-date fulltext search index at {}.", path);
	Files.walk(path)
	.sorted(Comparator.reverseOrder())
	.map(Path::toFile)
	.forEach(File::delete);
	}
	}
	} catch (IOException e) {

Mandatory checks

• Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
• Tests created for changes (if applicable)
• Manually tested changed features in running JabRef (always required)
• Screenshots added in PR description (for UI changes)
• Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
• Checked documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request to the documentation repository.

[koppor]

I think, just number is OK.

Alternative: 6.0.0 - to mirror the JabRef main version and the last number is the index version within a role. However since new JabRef versions come out and need no full rebuild, just 1 is good.

[github-actions]

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obsolete