cipher-alignment: migrate LDADD/CFLAGS after rename

mini-alignment was updated and renamed to cipher alignment in f63f0e48 mini_alignment_CPPFLAGS and mini_alignment_LDFLAGS were left behind, causing the following automake warning:

tests/Makefile.am:415: warning: variable 'mini_alignment_LDADD' is defined but no program or tests/Makefile.am:415: library has 'mini_alignment' as canonical name (possible typo)

Migrate these settings to the renamed test

Checklist

• Commits have Signed-off-by: with name/author being identical to the commit author
• Code modified for feature
• Test suite updated with functionality tests
• Test suite updated with negative tests
• Documentation updated / NEWS entry present (for non-trivial changes)
• CI timeout is 2h or higher (see Settings/CICD/General pipelines/Timeout)

Reviewer's checklist:

• Any issues marked for closing are addressed
• There is a test suite reasonably covering new functionality or modifications
• Function naming, parameters, return values, types, etc., are consistent and according to CONTRIBUTION.md
• This feature/change has adequate documentation added
• No obvious mistakes in the code