[chore]: Bump github.com/uptrace/bun from 1.2.6 to 1.2.8

Bumps [github.com/uptrace/bun](https://github.com/uptrace/bun) from 1.2.6 to 1.2.8.
- [Release notes](https://github.com/uptrace/bun/releases)
- [Changelog](https://github.com/uptrace/bun/blob/master/CHANGELOG.md)
- [Commits](https://github.com/uptrace/bun/compare/v1.2.6...v1.2.8)

---
updated-dependencies:
- dependency-name: github.com/uptrace/bun
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

vendor/github.com/uptrace/bun/model_table_m2m.go

@@ -103,7 +103,7 @@ func (m *m2mModel) scanM2MColumn(column string, src interface{}) error {
 			if err := field.Scan(dest, src); err != nil {
 				return err
 			}
-			m.structKey = append(m.structKey, dest.Interface())
+			m.structKey = append(m.structKey, indirectFieldValue(dest))
 			break
 		}
 	}