refactor: add validation to crc, user and secrets endpoints

[Panaetius]

adds validation of ids and responses to crc, user and secret endpoints.
handles response validation errors correctly
part of #304

[Panaetius]

This change is part of the following stack:

• test: fix schemathesis query parameters test #340
  • refactor: unify user and user_preferences modules #325
    • refactor: add validation to crc, user and secrets endpoints #326 ◀

_{Change managed by git-spice.}

The base branch was changed.

[coveralls]

Pull Request Test Coverage Report for Build 10285214866

Details

• 52 of 57 (91.23%) changed or added relevant lines in 6 files are covered.
• 6 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.003%) to 90.395%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
components/renku_data_services/crc/blueprints.py	23	28	82.14%

Files with Coverage Reduction	New Missed Lines	%
components/renku_data_services/crc/blueprints.py	1	92.88%
components/renku_data_services/crc/db.py	2	87.58%
components/renku_data_services/storage/blueprints.py	3	94.65%

Totals
Change from base Build 10285141847:	-0.003%
Covered Lines:	9054
Relevant Lines:	10016

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💛 - Coveralls