Lint: Ignore findings on string-based keys for Context

As it's probably a bit late to change this, in case it changes expected
behaviour, via SA1029.

Author: Jamie Tanna

oapi_validate.go

@@ -130,12 +130,12 @@ func ValidateRequestFromContext(ctx echo.Context, router routers.Router, options
 
 	// Pass the Echo context into the request validator, so that any callbacks
 	// which it invokes make it available.
-	requestContext := context.WithValue(context.Background(), EchoContextKey, ctx)
+	requestContext := context.WithValue(context.Background(), EchoContextKey, ctx) //nolint:staticcheck
 
 	if options != nil {
 		validationInput.Options = &options.Options
 		validationInput.ParamDecoder = options.ParamDecoder
-		requestContext = context.WithValue(requestContext, UserDataKey, options.UserData)
+		requestContext = context.WithValue(requestContext, UserDataKey, options.UserData) //nolint:staticcheck
 	}
 
 	err = openapi3filter.ValidateRequest(requestContext, validationInput)