[PROBLEM] tiny code error report

[mhyeonsoo]

[optional format]

Identify the file to be fixed
Code_quality_and_security_scan_with_GitHub_Actions.md

Describe the problem
In the provided yaml code, there is 'fi' lacking inside

Describe a solution

name: Get Diff
        run: |
          git diff origin/main...HEAD \
            | grep '^[+-]' \
            | grep -Ev '^(---|\+\+\+)' > code_changes_only.txt
          jq -Rs '{diff: .}' code_changes_only.txt > diff.json
          if [ -f original_files_temp.json ]; then
            jq -s '.[0] * .[1]' diff.json original_files_temp.json > combined.json
            mv combined.json diff.json
          fi

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

Thanks