chore(NA): add 7.7 branch to the list of backport branches

[mistic]

Small change to add 7.7 to the list of branches to backport to.

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)

[kibanamachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: 68b7769
• Pipeline Steps (look for red circles / failed steps)
• Interpreting CI Failures

Failed CI Steps

• Execute x-pack-intake

---

Test Failures

Kibana Pipeline / x-pack-intake-agent / X-Pack Jest Tests.x-pack/plugins/ml/server/models/data_recognizer.ML - data recognizer listModules - check all module IDs

Link to Jenkins

Standard Out

Failed Tests Reporter:
  - Test has failed 7 times on tracked branches: https://github.com/elastic/kibana/issues/59541

Stack Trace

Error: expect(received).toEqual(expected) // deep equality

Expected: "apache_ecs,apm_jsbase,apm_nodejs,apm_transaction,auditbeat_process_docker_ecs,auditbeat_process_hosts_ecs,logs_ui_analysis,logs_ui_categories,metricbeat_system_ecs,nginx_ecs,sample_data_ecommerce,sample_data_weblogs,siem_auditbeat,siem_auditbeat_auth,siem_packetbeat,siem_winlogbeat,siem_winlogbeat_auth"
Received: "apache_ecs,apm_jsbase,apm_nodejs,apm_transaction,auditbeat_process_docker_ecs,auditbeat_process_hosts_ecs,logs_ui_analysis,logs_ui_categories,metricbeat_system_ecs,nginx_ecs,sample_data_ecommerce,sample_data_weblogs,siem_auditbeat,siem_auditbeat_auth,siem_packetbeat,siem_winlogbeat,siem_winlogbeat_auth,uptime_heartbeat"
    at Object.it (/var/lib/jenkins/workspace/elastic+kibana+pipeline-pull-request/kibana/x-pack/plugins/ml/server/models/data_recognizer/data_recognizer.test.ts:44:24)

---

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[tylersmalley]

Failure fixed in #61235 - additionally, this change does not effect testing so going to merge.

[kibanamachine]

Friendly reminder: Looks like this PR hasn’t been backported yet.
To create backports run node scripts/backport --pr 61240 or prevent reminders by adding the backport:skip label.