config: Warn if ContactInfo is not set

[dgoulet-tor]

Closes #33361

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

[coveralls]

Pull Request Test Coverage Report for Build 8290

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 19 unchanged lines in 6 files lost coverage.
• Overall coverage increased (+0.002%) to 60.914%

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Files with Coverage Reduction	New Missed Lines	%
src/core/or/or.h	1	88.89%
src/lib/string/compat_ctype.h	1	88.89%
src/ext/tinytest.c	2	49.51%
src/lib/net/address.h	2	73.33%
src/feature/dirauth/shared_random.c	4	85.1%
src/feature/dirauth/dirvote.c	9	64.65%
<!--	Total:	19

Totals
Change from base Build 8056:	0.002%
Covered Lines:	44570
Relevant Lines:	73169

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💛 - Coveralls