feat(appsec): expose uploaded file content as new WAF address server.request.body.files_content for commons-fileupload#11137

jandro996 wants to merge 6 commits intomasterDataDog/dd-trace-java:masterfrom

alejandro.gonzalez/APPSEC-61875-file-upload-contentDataDog/dd-trace-java:alejandro.gonzalez/APPSEC-61875-file-upload-contentCopy head branch name to clipboard