Bump gorm.io/driver/postgres in /member-portal-backend

Bumps [gorm.io/driver/postgres](https://github.com/go-gorm/postgres) from 1.5.9 to 1.5.11.
- [Commits](go-gorm/postgres@v1.5.9...v1.5.11)

---
updated-dependencies:
- dependency-name: gorm.io/driver/postgres
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

member-portal-backend/go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/viper v1.19.0
 	golang.org/x/crypto v0.28.0
-	gorm.io/driver/postgres v1.5.9
+	gorm.io/driver/postgres v1.5.11
 	gorm.io/driver/sqlite v1.5.6
 	gorm.io/gorm v1.25.12
 )

member-portal-backend/go.sum

@@ -140,8 +140,8 @@ gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gorm.io/driver/postgres v1.5.9 h1:DkegyItji119OlcaLjqN11kHoUgZ/j13E0jkJZgD6A8=
-gorm.io/driver/postgres v1.5.9/go.mod h1:DX3GReXH+3FPWGrrgffdvCk3DQ1dwDPdmbenSkweRGI=
+gorm.io/driver/postgres v1.5.11 h1:ubBVAfbKEUld/twyKZ0IYn9rSQh448EdelLYk9Mv314=
+gorm.io/driver/postgres v1.5.11/go.mod h1:DX3GReXH+3FPWGrrgffdvCk3DQ1dwDPdmbenSkweRGI=
 gorm.io/driver/sqlite v1.5.6 h1:fO/X46qn5NUEEOZtnjJRWRzZMe8nqJiQ9E+0hi+hKQE=
 gorm.io/driver/sqlite v1.5.6/go.mod h1:U+J8craQU6Fzkcvu8oLeAQmi50TkwPEhHDEjQZXDah4=
 gorm.io/gorm v1.25.12 h1:I0u8i2hWQItBq1WfE0o2+WuL9+8L21K9e2HHSTE/0f8=