Merge pull request microsoft#1047 from microsoft/update_codeowners

Bump codeowners action to 1.5.4

Author: Orta Therox

.github/CODEOWNERS

@@ -1,4 +1,5 @@
 src/**/*.ts @saschanaz
 baselines/* @saschanaz
 inputfiles/**/* @saschanaz
-README.md @saschanaz
+README.md @saschanaz
+package-lock.json @saschanaz

.github/workflows/codeowners-merge.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Run Codeowners merge check
-        uses: OSS-Docs-Tools/code-owner-self-merge@1.5.3
+        uses: OSS-Docs-Tools/code-owner-self-merge@1.5.4
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with: