The test-pgp and test-pgpmime fail sporadically.
See: https://github.com/jstedfast/gmime/issues/177

*** source/tests/Makefile.am	1970-01-01 09:00:01.000000000 +0900
--- tests/Makefile.am.new	2025-04-03 23:11:19.220597686 +0900
***************
*** 22,33 ****
  	test-autocrypt	\
  	test-mime
  
- if ENABLE_CRYPTO
- AUTOMATED_TESTS +=	\
- 	test-pgp	\
- 	test-pgpmime
- endif
- 
  MANUAL_TESTS =		\
  	test-best	\
  	test-parser 	\
--- 22,27 ----