tdf#124791: Fix Gaelic (Scotland) (gd-GB) LCID in MSI installer

... which was obviously omitted in commit
6b678c13, which introduced the correct
value of 0x0491 (1169) in addition to the pre-existing 0x043C (1084).
The new value is used when user sets relevant entry in Region and
Language control panel applet (intl.cpl); having the old value in MSI
summary information blocks auto-detection of proper installer language.

[MS-LCID] Appendix A mentions that the new code is available since Win7,
so we are good with the fix.

[MS-LCID] https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-lcid/a9eac961-e77d-41a6-90a5-ce1a8b0cdb9cCo-authored-by: Eike Rathke <erack@redhat.com>

Change-Id: Ic03b0e8eaf145c662fde48846cd5307e362d4d63
Reviewed-on: https://gerrit.libreoffice.org/71242Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>

l10ntools/source/ulfconv/msi-encodinglist.txt

@@ -62,7 +62,7 @@ fr-CA    0  3084
 fy       0  1122   # Frisian
 fur      0  1585
 ga       0  2108   # Irish
-gd       0  1084   # Gaelic (Scotland)
+gd       0  1169   # Gaelic (Scotland)
 gl       0  1110   # Galician
 gu       0  1095   # Gujarati
 gu-IN    0  1095   # Gujarati