INTPYTHON-592 Fix version bump script for release process

Author: blink1073

.github/scripts/bump-version.sh

@@ -2,4 +2,4 @@
 set -eu
 
 CURRENT_VERSION=$(NO_EXT=1 python setup.py --version)
-sed -i '' "s/__version__ = \"${CURRENT_VERSION}\"/__version__ = \"$1\"/" "pymongoarrow/version.py"
+sed -i "s/__version__ = \"${CURRENT_VERSION}\"/__version__ = \"$1\"/" "pymongoarrow/version.py"