fix: fix release yml (#571)

Co-authored-by: Justin Shih <jushih@amazon.com>

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Get Version Number
         id: get-version-number
         run: |
-          version_number=$(echo "${{github.event.head_commit.message}}" | sed -e "s/^chore(release): v//" -e "s/ (#[[:digit:]]\+)$//")
+          version_number=$(echo "${{github.event.head_commit.message}}" | sed -n "s/.*\([0-9]\+\.[0-9]\+\.[0-9]\+\).*/\1/p")
           echo "::set-output name=version_number::$version_number"
       - name: Get Release Description
         run: npx -y changelog-parser CHANGELOG.md | jq -r '.versions[0].body' > release_description.md