Fix changelog downloading workflow

Author: AndreyAkinshin

.github/workflows/docs-changelog-generate.yaml

@@ -19,7 +19,7 @@ jobs:
         ref: master
 
     - name: Download changelog
-      run: ./build.sh --target DocFX_Changelog_Download --LatestVersions 1
+      run: ./build.sh --target DocFX_Changelog_Download --VersionCount 1
       env:
         GITHUB_PRODUCT: ChangelogBuilder
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/docs-stable.yaml

@@ -22,7 +22,7 @@ jobs:
       run: ./build.bat --target Build
 
     - name: Download changelog
-      run: ./build.bat --target DocFX_Changelog_Download --LatestVersions 1
+      run: ./build.bat --target DocFX_Changelog_Download --VersionCount 1
       env:
         GITHUB_PRODUCT: ChangelogBuilder
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}