Allow wheels installation when the batch is executed outside the repo

build-telemac-deps.bat

@@ -295,10 +295,10 @@ echo Installing Python requirements...
 pip install -r %~dp0requirements.txt || goto install_error
 
 rem Use GDAL, Fiona, Rasterio and Shapely unofficial wheels, to avoid building them locally
-pip install wheels\%gdal%
-pip install wheels\%fiona%
-pip install wheels\%rasterio%
-pip install wheels\%shapely%
+pip install %~dp0wheels\%gdal%
+pip install %~dp0wheels\%fiona%
+pip install %~dp0wheels\%rasterio%
+pip install %~dp0wheels\%shapely%
 pip install geopandas
 
 popd