Update names of DAST postman images

...curity/api_fuzzing/configuration/enabling_the_analyzer.md

...user/application_security/api_fuzzing/create_har_files.md

...mg/api_fuzzing_postman_collection_edit_variable_v13_9.png

...g/api_fuzzing_postman_environment_edit_variable_v13_9.png

...pi_fuzzing/img/api_fuzzing_postman_request_edit_v13_9.png

...ty/api_fuzzing/img/vscode_har_edit_auth_header_v13_12.png

...i_security_testing/configuration/enabling_the_analyzer.md

...g/img/dast_api_postman_collection_edit_variable_v13_9.png

.../img/dast_api_postman_environment_edit_variable_v13_9.png

...urity_testing/img/dast_api_postman_request_edit_v13_9.png

doc/user/application_security/cve_id_request.md

doc/user/application_security/dast/authentication.md

...plication_security/dast/authentication_troubleshooting.md

...ion_security/dast/browser/configuration/authentication.md

...st/browser/img/dast_auth_browser_scan_highlight_v16_9.png

...wser/img/dast_auth_browser_scan_search_elements_v16_9.png

...tion_security/dast/browser/img/dast_auth_report_v16_9.jpg

...urity/dast/img/dast_auth_browser_scan_highlight_v14_0.png

...dast/img/dast_auth_browser_scan_search_elements_v14_0.png

.../application_security/dast/img/dast_auth_report_v14_0.jpg