Fix Findlibpcre2-8: resolve PCRE2::8BIT alias before aliasing

Author: Rahmeen14

cmake/Findlibpcre2-8.cmake

@@ -3,7 +3,14 @@
 find_package(pcre2 CONFIG REQUIRED)
 
 if (TARGET PCRE2::8BIT AND NOT TARGET libpcre2-8::libpcre2-8)
-    add_library(libpcre2-8::libpcre2-8 ALIAS PCRE2::8BIT)
+    # Resolve PCRE2::8BIT to its underlying IMPORTED target before aliasing,
+    # matching the approach used by the BDE vcpkg port.
+    get_target_property(_pcre2_actual PCRE2::8BIT ALIASED_TARGET)
+    if (_pcre2_actual)
+        add_library(libpcre2-8::libpcre2-8 ALIAS "${_pcre2_actual}")
+    else()
+        add_library(libpcre2-8::libpcre2-8 ALIAS PCRE2::8BIT)
+    endif()
 endif()
 
 set(libpcre2-8_FOUND TRUE)