feat: support runai as an amalthea remote backend

[ciyer]

Description

Changes to support starting sessions on Run:AI and resource pools with Run:AI as the remote backend.

[coveralls]

Pull Request Test Coverage Report for Build 23045282979

Details

• 94 of 119 (78.99%) changed or added relevant lines in 5 files are covered.
• 24 unchanged lines in 7 files lost coverage.
• Overall coverage decreased (-0.06%) to 87.141%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
components/renku_data_services/crc/models.py	28	29	96.55%
components/renku_data_services/crc/core.py	42	52	80.77%
components/renku_data_services/notebooks/core_sessions.py	0	14	0.0%

Files with Coverage Reduction	New Missed Lines	%
components/renku_data_services/base_api/misc.py	1	96.15%
components/renku_data_services/notebooks/core_sessions.py	1	59.48%
components/renku_data_services/base_api/error_handler.py	2	90.72%
components/renku_data_services/capacity_reservation/core.py	2	28.21%
components/renku_data_services/storage/blueprints.py	4	91.34%
components/renku_data_services/crc/core.py	5	79.25%
components/renku_data_services/notifications/core.py	9	30.95%

Totals
Change from base Build 22962607797:	-0.06%
Covered Lines:	25074
Relevant Lines:	28774

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💛 - Coveralls