Merge pull request #185 from pieces-app/fix/init_py_version_writing

Tell sed not to create backup file on macos

.github/workflows/build.yaml

@@ -93,12 +93,12 @@ jobs:
                 RELEASE_VERSION="${RELEASE_VERSION#v}"
                 echo $RELEASE_VERSION
                 poetry version $RELEASE_VERSION
-                sed -i "s/__version__ = .*/__version__ = '${RELEASE_VERSION}'/" src/pieces/__init__.py
+                sed -i "" "s/__version__ = .*/__version__ = '${RELEASE_VERSION}'/" src/pieces/__init__.py
           else
                 echo "This is not a tagged build"
                 export STAGING_VERSION='${{ steps.staging_version.outputs.STAGING_VERSION }}'
                 poetry version $STAGING_VERSION
-                sed -i "s/__version__ = .*/__version__ = '${STAGING_VERSION}'/" src/pieces/__init__.py
+                sed -i "" "s/__version__ = .*/__version__ = '${STAGING_VERSION}'/" src/pieces/__init__.py
           fi
 
       ### Writing our staging version to a file to be pulled in the last step to update our json in the cloud