Add missing SameSite settings for the i_like_gitea cookie (#16037)

The i_like_gitea cookie appears to be missing the SameSite settings. I think they
were present at some point but may have been removed in a merge.

This PR ensures that they are set.

Fix #15972

Signed-off-by: Andrew Thornton <art27@cantab.net>

routers/api/v1/api.go

@@ -557,6 +557,7 @@ func Routes() *web.Route {
 		Gclifetime:     setting.SessionConfig.Gclifetime,
 		Maxlifetime:    setting.SessionConfig.Maxlifetime,
 		Secure:         setting.SessionConfig.Secure,
+		SameSite:       setting.SessionConfig.SameSite,
 		Domain:         setting.SessionConfig.Domain,
 	}))
 	m.Use(securityHeaders())

routers/routes/install.go

@@ -94,6 +94,7 @@ func InstallRoutes() *web.Route {
 		Gclifetime:     setting.SessionConfig.Gclifetime,
 		Maxlifetime:    setting.SessionConfig.Maxlifetime,
 		Secure:         setting.SessionConfig.Secure,
+		SameSite:       setting.SessionConfig.SameSite,
 		Domain:         setting.SessionConfig.Domain,
 	}))
 

routers/routes/web.go

@@ -161,6 +161,7 @@ func WebRoutes() *web.Route {
 		Gclifetime:     setting.SessionConfig.Gclifetime,
 		Maxlifetime:    setting.SessionConfig.Maxlifetime,
 		Secure:         setting.SessionConfig.Secure,
+		SameSite:       setting.SessionConfig.SameSite,
 		Domain:         setting.SessionConfig.Domain,
 	}))