LambdaNETCoreDeploy failing to upload to S3 with signature mismatch in version 5.8.1

[SriReddyOSG]

Describe the bug
LambdaNETCoreDeploy in AzureDevops is throwing errors "Error uploading to xxxxx-CodeUri-Or-ImageUri-xxxxx-xxxxx.zip in bucket xxxxx/xxxxx: The request signature we calculated does not match the signature you provided. Check your key and signing method."

Looks like it started happening with Amazon.Lamda.Tools 5.8.1

To reproduce
Have a AzDo pipeline that wil use LambdaNETCoreDeploy to save the package to an S3 bucket.

Your Environment

• Azure Devops Cloud

Lambda project successfully packaged: C:\Users\VssAdministrator\AppData\Local\Temp\busTokensLambdaFunction-CodeUri-Or-ImageUri-638339604130850185.zip
Uploading to S3. (Bucket: riyo-serverless-code/busTokens Key: riyo-functions-busTokensLambdaFunction-CodeUri-Or-ImageUri-638339604130850185.zip)
Error uploading to riyo-functions-busTokensLambdaFunction-CodeUri-Or-ImageUri-638339604130850185.zip in bucket riyo-serverless-code/busTokens: The request signature we calculated does not match the signature you provided. Check your key and signing method.
##[debug]Exit code 4294967295 received from tool 'C:\Users\VssAdministrator.dotnet\tools\dotnet-lambda.exe'
##[debug]STDIO streams have closed for tool 'C:\Users\VssAdministrator.dotnet\tools\dotnet-lambda.exe'
##[debug]task result: Failed
##[error]Error: The process 'C:\Users\VssAdministrator.dotnet\tools\dotnet-lambda.exe' failed with exit code 4294967295
##[debug]Processed: ##vso[task.issue type=error;]Error: The process 'C:\Users\VssAdministrator.dotnet\tools\dotnet-lambda.exe' failed with exit code 4294967295
##[debug]Processed: ##vso[task.complete result=Failed;]Error: The process 'C:\Users\VssAdministrator.dotnet\tools\dotnet-lambda.exe' failed with exit code 4294967295