More fixes for BCR (#2)

.github/workflows/release_prep.sh

diff --git a/.github/workflows/release_prep.sh b/.github/workflows/release_prep.sh
index e4d6d81..5f9e73d 100755
--- a/.github/workflows/release_prep.sh
+++ b/.github/workflows/release_prep.sh
@@ -10,7 +10,7 @@
 ARCHIVE="rules_multitool-${TAG:1}.tar.gz"
 
 # embed version in MODULE.bazel
-sed -i "s/version = \"0\.0\.0\"/version = \"${TAG:1}\"/" MODULE.bazel
+perl -pi -e "s/version = \"0\.0\.0\",/version = \"${TAG:1}\",/g" MODULE.bazel
 
 git archive --format=tar --prefix=${PREFIX}/ ${TAG} | gzip > $ARCHIVE
 SHA=$(shasum -a 256 $ARCHIVE | awk '{print $1}')