fix build under newer KConfig by bump cmake min version

3rdparty/lexilla540/lexilla/test/examples/powershell/CharacterTruncation.ps1

@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+# Show problem with character value truncation causing U+0121 'ġ' (LATIN SMALL LETTER G WITH DOT ABOVE)
+# to be styled as an operator as static_cast<char>(0x121) = 0x21 == '!' which is an operator
+
+# Isolate
+ġ
+
+# Continuing from operator
+(ġ)