Merge pull request #5942 from reylejano/rfp-update-vendor-selection-date

Update External Security Audit RFP vendor selection date

Author: k8s-ci-robot

sig-security/security-audit-2021/RFP.md

@@ -79,7 +79,7 @@ Proposals should be submitted to [email protected]
 * 2021/02/08: RFP Open, Question period open
 * 2021/06/22: Fourth proposal received
 * 2021/07/06: RFP Closes, Question period closes
-* 2021/08/10: The working group will announce vendor selection
+* 2021/08/13: The working group will announce vendor selection
 
 ## Methodology