DEV: Update AWS API stub following gem version bump (#14673)

DEV: Update AWS API stub following gem version bump (#14673)

The latest version of the gem doesn’t send whitespace in this request body, so we need to update the test stub accordingly

diff --git a/spec/requests/uploads_controller_spec.rb b/spec/requests/uploads_controller_spec.rb
index b142eed..def58be 100644
--- a/spec/requests/uploads_controller_spec.rb
+++ b/spec/requests/uploads_controller_spec.rb
@@ -1201,7 +1201,7 @@ describe UploadsController do
           :post,
           "#{temp_location}?uploadId=#{external_upload_stub.external_upload_identifier}"
         ).with(
-          body: "<CompleteMultipartUpload xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\">\n  <Part>\n    <ETag>test1</ETag>\n    <PartNumber>1</PartNumber>\n  </Part>\n  <Part>\n    <ETag>test2</ETag>\n    <PartNumber>2</PartNumber>\n  </Part>\n</CompleteMultipartUpload>\n"
+          body: "<CompleteMultipartUpload xmlns=\"http://s3.amazonaws.com/doc/2006-03-01/\"><Part><ETag>test1</ETag><PartNumber>1</PartNumber></Part><Part><ETag>test2</ETag><PartNumber>2</PartNumber></Part></CompleteMultipartUpload>"
         ).to_return(status: 200, body: <<~XML)
           <?xml version="1.0" encoding="UTF-8"?>
           <CompleteMultipartUploadResult>

GitHub sha: aac3547cc2874f80f67f99e75a59ecf1a124c49e

This commit appears in #14673 which was approved by nlalonde. It was merged by davidtaylorhq.