Don’t require license headers in JSON files

JSON files don’t support comments and thus can’t have license headers

Author: ahoppen

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

@@ -64,13 +64,15 @@ while IFS= read -r file_path; do
     in) expected_file_header=$(sed -e 's|@@|##|g' <<<"${expected_file_header_template}") ;;
     java) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     js) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    json) break ;; # JSON doesn't support comments
     jsx) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     kts) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     ps1) 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}")) ;;
     sh) expected_file_header=$(cat <(echo '#!/bin/bash') <(sed -e 's|@@|##|g' <<<"${expected_file_header_template}")) ;;
     swift) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
+    swift-format) break ;; # .swift-format is JSON and doesn't support comments
     ts) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     tsx) expected_file_header=$(sed -e 's|@@|//|g' <<<"${expected_file_header_template}") ;;
     *)