Update .github/workflows/publish-maven.yml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: brunoborges

.github/workflows/publish-maven.yml

@@ -123,7 +123,7 @@ jobs:
                   
                   # Update version in jbang-example.java
                   sed -i "s|copilot-sdk-java:[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\(-java\.[0-9][0-9]*\)\{0,1\}|copilot-sdk-java:${VERSION}|g" jbang-example.java
-                  sed -i "s|copilot-sdk-java:\${project\.version}|copilot-sdk-java:${VERSION}|g" jbang-example.java
+                  sed -i 's|copilot-sdk-java:${project\.version}|copilot-sdk-java:'"${VERSION}"'|g' jbang-example.java
                   
                   # Update version in cookbook files (hardcoded for direct GitHub browsing and JBang usage)
                   find src/site/markdown/cookbook -name "*.md" -type f -exec \