Support .java files in check-license-header.sh

We also need to support java files

Author: ktoso

.github/workflows/scripts/check-license-header.sh

@@ -48,6 +48,7 @@ while IFS= read -r file_path; do
     c) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     sh) expected_file_header=$(cat <(echo '#!/bin/bash') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
     kts) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    java) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     py) expected_file_header=$(cat <(echo '#!/usr/bin/env python3') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
     rb) expected_file_header=$(cat <(echo '#!/usr/bin/env ruby') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
     in) expected_file_header=$(sed -e 's|@@|##|g' <<<"${expected_file_header_template}") ;;