[CHORE] Move to new sessioner library

- Moves to a fork of gitea.com/go-chi/session that removed support for
couchbase (and ledis, but that was never made available in Forgejo)
along with other code improvements.
f8ce677595..main
- The rationale for removing Couchbase is quite simple. Its not licensed
under FOSS
license (https://www.couchbase.com/blog/couchbase-adopts-bsl-license/)
and therefore cannot be tested by Forgejo and shouldn't be supported.
This is a similair vein to the removal of MSSQL
support (https://codeberg.org/forgejo/discussions/issues/122)
- A additional benefit is that this reduces the Forgejo binary by ~600Kb.

routers/common/middleware.go

@@ -15,7 +15,7 @@ import (
 	"code.gitea.io/gitea/modules/web/routing"
 	"code.gitea.io/gitea/services/context"
 
-	"gitea.com/go-chi/session"
+	"code.forgejo.org/go-chi/session"
 	"github.com/chi-middleware/proxy"
 	chi "github.com/go-chi/chi/v5"
 )

routers/install/install.go

@@ -36,7 +36,7 @@ import (
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/forms"
 
-	"gitea.com/go-chi/session"
+	"code.forgejo.org/go-chi/session"
 )
 
 const (

routers/web/admin/config.go

@@ -22,7 +22,7 @@ import (
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/mailer"
 
-	"gitea.com/go-chi/session"
+	"code.forgejo.org/go-chi/session"
 )
 
 const (