fix mbedtls and make it staticly linked to shared object when fetchcontent is enabled

pkgconfig/CMakeLists.txt

@@ -4,7 +4,7 @@ set(PKGCONFIG_LIBDIR "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
 set(PKGCONFIG_PROJECT_DESCRIPTION "A cross platform wrapper library")
 set(PKGCONFIG_PROJECT_HOMEPAGE_URL "https://git.tesses.org/tessesframework")
 
-if(TESSESFRAMEWORK_ENABLE_MBED)
+if(TESSESFRAMEWORK_ENABLE_MBED AND NOT (TESSESFRAMEWORK_FETCHCONTENT AND NOT TESSESFRAMEWORK_STATIC))
 set(PKGCONFIG_DEPS "Requires: mbedtls")
 else()
 set(PKGCONFIG_DEPS "")