Update quay.io/oauth2-proxy/oauth2-proxy Docker tag to v7.15.2

manifests/social-to-rolodex/social-to-rolodex.yaml

@@ -92,7 +92,7 @@ spec:
             secretKeyRef:
               key: password
               name: social-to-rolodex-auth
-        image: quay.io/oauth2-proxy/oauth2-proxy:v7.15.1
+        image: quay.io/oauth2-proxy/oauth2-proxy:v7.15.2
         name: oauth-proxy
         ports:
         - containerPort: 8000