chore(deps): update dependency sphinx-terminal to v1.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
sphinx-terminal	==1.0.3 → ==1.1.0

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[danielvnguyen]

Automated PR janitor check: all visible CI checks on this commit report success, but GitHub reports mergeable_state: behind — this branch is behind its base branch (track/1) and cannot be merged as-is. This is not something a check rerun can fix (no failing/pending check exists to rerun); it requires the branch to be updated (e.g. ticking the Renovate "rebase/retry" checkbox in the PR description, or a maintainer rebasing/merging base into this branch) before it can be merged. No rerun was attempted since there is no failing check to retry. Please rebase or ask Renovate to update this PR.

[danielvnguyen]

Automated CI check found failing checks on this commit:

• integration-tests / Required Integration Test Status Checks — failure
• integration-tests / Integration tests / Integration tests (test_scaling) — failure

These are likely the reason mergeable_state reports blocked. A CI rerun tool was not available in this automated session, so no rerun was attempted (rerun budget: 0/2 used). Please rerun the failing test_scaling integration test job manually, or investigate the failure at: https://github.com/canonical/synapse-operator/actions/runs/31635638681/job/94245175022

This PR (sphinx-terminal 1.0.3 → 1.1.0, a minor bump with no breaking-change signals in the release notes) is otherwise ready to merge once CI passes.