Fix Server xrefs

Fix all of the broken xrefs in the Server docs that are flagged up in the Antora build.

repo: https://github.com/couchbase/docs-server | branch: release/5.5 | component: server | version: 5.5
path: modules/clustersetup/pages/server-setup.adoc | xref: java-sdk::subdocument-operations.adoc
path: modules/getting-started/pages/try-a-query.adoc | xref: nodejs-sdk::n1ql-queries-with-sdk.adoc
path: modules/introduction/pages/whats-new.adoc | xref: dotnet-sdk::threshold-logging.adoc
path: modules/understanding-couchbase/pages/buckets-memory-and-storage/expiration.adoc | xref: java-sdk::core-operations.adoc

repo: https://github.com/couchbase/docs-server | branch: release/6.0 | component: server | version: 6.0
path: modules/getting-started/pages/try-a-query.adoc | xref: nodejs-sdk::n1ql-queries-with-sdk.adoc
path: modules/install/pages/install-platforms.adoc | xref: operator:overview.adoc
path: modules/install/pages/install-ports.adoc | xref: xdcr-reference:xdcr-advanced-settings.adoc
path: modules/learn/pages/buckets-memory-and-storage/expiration.adoc | xref: java-sdk::core-operations.adoc
path: modules/manage/pages/manage-security/configure-client-certificates.adoc | xref: 3.0@java-sdk:sdk-authentication-overview.adoc

repo: https://github.com/couchbase/docs-server | branch: release/6.5 | component: server | version: 6.5
path: modules/cloud/pages/couchbase-cloud-deployment.adoc | xref: install/install-ports.adoc
path: modules/cloud/pages/couchbase-cloud-deployment.adoc | xref: sync-gateway:config-properties.adoc
path: modules/install/pages/install-platforms.adoc | xref: operator:overview.adoc
path: modules/install/pages/upgrade-to-ipv6.adoc | xref: install:offline-upgrade.adoc
path: modules/learn/pages/clusters-and-availability/connectivity.adoc | xref: cli:cbli/couchbase-cli-setting-alternate-address.adoc
path: modules/manage/pages/manage-groups/manage-groups.adoc | xref: cli:cbcli/couchbase-cli/rebalance.adoc
path: modules/manage/pages/manage-security/configure-ldap.adoc | xref: cli:cbcli/user-manage.adoc
path: modules/manage/pages/manage-security/manage-users-and-roles.adoc | xref: cli:cli-user-manage.adoc