fix: use current binary directory mariadb shared object and dont override env variable (#1669)

* mac stuff

grab correct mariadb file and dont override env variable

fix for unix

Update CMakeLists.txt

unix only

* get that dylib

CMakePresets.json

@@ -11,9 +11,6 @@
 			"displayName": "Default configure step",
 			"description": "Use 'build' dir and Unix makefiles",
 			"binaryDir": "${sourceDir}/build",
-			"environment": {
-				"DLU_CONFIG_DIR": "${sourceDir}/build"
-			},
 			"generator": "Unix Makefiles"
 		},
 		{