hs-v2: Add deprecation warning for service

[dgoulet-tor]

If at least one service is configured as a version 2, a log warning is emitted once and only once.

Closes #40003

Signed-off-by: David Goulet [email protected]

[coveralls]

Pull Request Test Coverage Report for Build 9360

• 6 of 6 (100.0%) changed or added relevant lines in 1 file are covered.
• 316 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.003%) to 60.943%

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Files with Coverage Reduction	New Missed Lines	%
src/feature/nodelist/routerlist.c	316	39.94%
<!--	Total:	316

Totals
Change from base Build 9314:	0.003%
Covered Lines:	44594
Relevant Lines:	73173

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💛 - Coveralls