[Scripts] Fix build_components (#332)

This PR ensures that the `build_components.sh` script can run on both
Linux and MacOS.

As suggested by @RobbeSneyders
[here](#303 (comment)),
thanks!

.gitignore

@@ -86,4 +86,7 @@ MANIFEST
 *.tgz
 
 # docker artifacts
-examples/pipelines/**/docker-compose.yml
+examples/pipelines/**/docker-compose.yml
+
+# yaml-e files
+*.yaml-e

scripts/build_components.sh

@@ -75,7 +75,7 @@ for dir in "${components_to_build[@]}"; do
 
   echo "Updating the image version in the fondant_component.yaml with:"
   echo "${full_image_names[0]}"
-  sed -i "s|^image: .*|image: ${full_image_names[0]}|" fondant_component.yaml
+  sed -i -e "s|^image: .*|image: ${full_image_names[0]}|" fondant_component.yaml
 
   args=()