Bump AWSSDK.S3 from 4.0.19.3 to 4.0.19.4 (#1356)

---
updated-dependencies:
- dependency-name: AWSSDK.S3
  dependency-version: 4.0.19.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

BervProject.MergePDF.S3/BervProject.MergePDF.S3.csproj

@@ -8,7 +8,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="AWSSDK.S3" Version="4.0.19.3" />
+      <PackageReference Include="AWSSDK.S3" Version="4.0.19.4" />
     </ItemGroup>
 
     <ItemGroup>