RA: Make calls to countCertificateIssued and countFailedValidations synchronous

[beautifulentropy]

Solves CI flakes in TestCertificatesPerDomain and TestIdentifiersPausedForAccount that are the result of a race on the Redis database. This has the downside of making failed validations and successful finalizations take slightly longer.

[jsha]

This seems like a good tradeoff to me.

[jsha]

Huh, I haven't seen this failure before:

--- FAIL: TestAdminClearEmail (0.04s)
    admin_test.go:43: clearing email via admin tool (./bin/admin -config test/config/admin.json -dry-run=false update-email -address example@mail.example.letsencrypt.org -clear): 21:11:00.138242 6 admin 8MWbnQQ Debug server listening on :8014
        21:11:00.138274 6 admin p6yD7gM Versions: admin=(Unspecified Unspecified) Golang=(go1.23.1) BuildHost=(Unspecified)
        21:11:00.138496 3 admin 9siVpw4 [AUDIT] unable to boot debug server on :8014: listen tcp :8014: bind: address already in use
        : exit status 1
FAIL
FAIL	github.com/letsencrypt/boulder/test/integration	37.912s
FAIL

[aarongable]

LGTM, makes sense.

[beautifulentropy]

Huh, I haven't seen this failure before:

--- FAIL: TestAdminClearEmail (0.04s)
    admin_test.go:43: clearing email via admin tool (./bin/admin -config test/config/admin.json -dry-run=false update-email -address example@mail.example.letsencrypt.org -clear): 21:11:00.138242 6 admin 8MWbnQQ Debug server listening on :8014
        21:11:00.138274 6 admin p6yD7gM Versions: admin=(Unspecified Unspecified) Golang=(go1.23.1) BuildHost=(Unspecified)
        21:11:00.138496 3 admin 9siVpw4 [AUDIT] unable to boot debug server on :8014: listen tcp :8014: bind: address already in use
        : exit status 1
FAIL
FAIL	github.com/letsencrypt/boulder/test/integration	37.912s
FAIL

Yeah, me either. We should keep a lookout for it.