updated release added ref to main branch

Author: rahul-infra

.github/workflows/release-preview.yaml

@@ -50,9 +50,9 @@ jobs:
           OUTPUT=$(npx semantic-release --dry-run --no-ci --branches main 2>&1 || true)
           echo "$OUTPUT"
 
-          # Extract version information
-          NEW_VERSION=$(echo "$OUTPUT" | grep -oP "The next release version is \K[0-9]+\.[0-9]+\.[0-9]+" || echo "")
-          RELEASE_TYPE=$(echo "$OUTPUT" | grep -oP "Analysis of \d+ commits complete: \K\w+ release" | sed 's/ release//' || echo "")
+          # Extract version information (compatible with both GNU and BSD grep)
+          NEW_VERSION=$(echo "$OUTPUT" | grep -Eo "The next release version is [0-9]+\.[0-9]+\.[0-9]+" | grep -Eo "[0-9]+\.[0-9]+\.[0-9]+" || echo "")
+          RELEASE_TYPE=$(echo "$OUTPUT" | grep -Eo "Analysis of [0-9]+ commits complete: [a-z]+ release" | grep -Eo "(major|minor|patch) release" | sed 's/ release//' || echo "")
 
           # Save to outputs
           echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
@@ -64,6 +64,8 @@ jobs:
           echo "EOF" >> $GITHUB_OUTPUT
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_REF: refs/heads/main
+          GITHUB_REF_NAME: main
 
       - name: Display Preview
         run: |