Warning for Unicode character U+1DBB is invalid, this character is used in the Lushootseed language's alphabet.

[vigilantpenguin]

What steps will reproduce the problem?

1. Download way 835645674
2. Perform data validation

What is the expected result?

No warnings for unusual Unicode characters

What happens instead?

A warning for "Tag value contains unusual Unicode character U+1DBB - Tag 'alt_name:lut' invalid" is shown.

Please provide any additional information below. Attach a screenshot if possible.

The U+1DBB character has valid usage in the context of the Lushootseed language when following the character 'd'.
See ​https://en.wikipedia.org/wiki/Lushootseed#Alphabet for more detail.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2023-07-06 21:00:41 +0200 (Thu, 06 Jul 2023)
Build-Date:2023-07-07 01:30:58
Revision:18772
Relative:URL: ^/trunk

Identification: JOSM/1.5 (18772 en) Windows 11 64-Bit
OS Build number: Windows 10 Pro 2009 (22621)
Memory Usage: 540 MB / 1820 MB (111 MB allocated, but free)
Java version: 1.8.0_361-b09, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Look and Feel: com.formdev.flatlaf.FlatDarculaLaf
Screen: \Display0 1920×1080 (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→32×32, 32×32→32×32
System property file.encoding: Cp1252
System property sun.jnu.encoding: Cp1252
Locale info: en_US
Numbers with default locale: 1234567890 -> 1234567890
Dataset consistency test: No problems found

Plugins:
+ Mapillary (2.1.5)
+ MicrosoftStreetside (36097)
+ PicLayer (1.0.2)
+ apache-commons (36034)
+ apache-http (35924)
+ ejml (35924)
+ flatlaf (36036)
+ geotools (36068)
+ imagery_offset_db (36079)
+ jackson (36034)
+ javafx (36086)
+ jaxb (35952)
+ jna (36005)
+ jts (36004)
+ log4j (36045)
+ measurement (36097)
+ opendata (36097)
+ pbf (36034)
+ pdfimport (36097)
+ public_transport (36097)
+ turnrestrictions (36097)
+ undelete (36066)
+ utilsplugin2 (36097)

Last errors/warnings:
- 00005.995 W: Failed to delete outdated plugin '<josm.pref>\plugins\flatlaf.jar'.
- 00005.996 W: Failed to install already downloaded plugin 'flatlaf'. Skipping installation. JOSM is still going to load the old plugin version.
- 00018.247 W: Warning: Failed to scan file 'site-svn.openstreetmap.org-_applications_editors_josm_plugins_opendata_modules.txt' for module information. Skipping.
- 06732.749 W: Warning - Cannot merge nodes: Would have to delete way <ul><li>‎Yesler Way‎ (2 nodes) [id: 6,344,809]‌</li></ul> which is still used by <ul><li>restriction ("only_straight_on", 3 members) [id: 15,800,290]</li><li>restriction ("no_left_turn", 3 members) [id: 13,293,715]</li></ul>

[taylor.smock]

In 18820/josm:

Fix #23138: Add characters for Lushootseed to TagChecker#isAllowedPhoneticCharacter