Update dependency juju/juju to v3.5.4 #410

Job	Run time
Check libraries	40s
Unit test charm	22s
Lint / Lint .github/workflows/	6s
Lint / tox run -e lint	16s
Build charm \| . / Collect bases for charm \| .	14s
Build charm \| tests/integration/application / Collect bases for charm \| tests/integration/application	14s
Build charm \| . / Build charm \| base #0	9m 54s
Build charm \| tests/integration/application / Build charm \| base #0	5m 30s
Integration test charm \| 3.5.4 / 3.5.4 \| amd64 \| Collect integration test groups	23s
Integration test charm \| 3.6/beta / ${{ inputs.juju-agent-version \|\| inputs.juju-snap-channel }} \| ${{ inputs.architecture }} \| Collect integration test groups	0s
Integration test charm \| 3.6/beta / ${{ matrix.groups.job_name }}	0s
Integration test charm \| 3.6/beta / (beta) Publish Allure report	0s
Integration test charm \| 3.5.4 / client_relations/test_external_client_relations.py \| group 1	12m 28s
Integration test charm \| 3.5.4 / client_relations/test_internal_client_relations.py \| group 1	10m 49s
Integration test charm \| 3.5.4 / test_charm.py \| group 1	10m 38s
Integration test charm \| 3.5.4 / tls/test_tls.py \| group 1	38m 36s
Integration test charm \| 3.5.4 / upgrade_tests/test_rollback.py \| group 1	13m 17s
Integration test charm \| 3.5.4 / upgrade_tests/test_upgrades.py \| group 1	13m 45s
Integration test charm \| 3.5.4 / (beta) Publish Allure report	0s
	1h 57m 12s

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