fix: Update regex in check-version-bump.yml to support semantic versioning with pre-release labels

Author: harshitha-cstk

.github/workflows/check-version-bump.yml

@@ -82,7 +82,7 @@ jobs:
           LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || true)
           if [ -z "$LATEST_TAG" ]; then
             echo "No existing tags found. Skipping semver vs tag check."
-            CHANGELOG_HEAD=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+)\].*/\1/p' CHANGELOG.md | head -1)
+            CHANGELOG_HEAD=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z][0-9A-Za-z.-]*)?)\].*/\1/p' CHANGELOG.md | head -1)
             if [ -z "$CHANGELOG_HEAD" ]; then
               echo "::error::Could not find a ## [vX.Y.Z] entry at the top of CHANGELOG.md."
               exit 1
@@ -105,7 +105,7 @@ jobs:
             exit 1
           fi
 
-          CHANGELOG_HEAD=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+)\].*/\1/p' CHANGELOG.md | head -1)
+          CHANGELOG_HEAD=$(sed -nE 's/^## \[v?([0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z][0-9A-Za-z.-]*)?)\].*/\1/p' CHANGELOG.md | head -1)
           if [ -z "$CHANGELOG_HEAD" ]; then
             echo "::error::Could not find a ## [vX.Y.Z] entry at the top of CHANGELOG.md."
             exit 1