Use constructor injection for @ConfigProperty and qualified fields

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Checkstyle failed on PasswordFingerprintService.secretName, because a @ConfigProperty field must be package-private for Quarkus field injection, and VisibilityModifier rejects a non-private field. This PR moves every @ConfigProperty and qualified @Inject field to constructor injection with @RequiredArgsConstructor.

• lombok.config: Lombok copies @ConfigProperty and @Readiness to the parameter of the generated constructor. Without this, the constructor parameter has no qualifier and Quarkus injects the wrong value or fails.
• PasswordFingerprintService, Given, ClusterConnectionReconcilerTest: the @ConfigProperty fields are now private final. The @SuppressWarnings("NullAway.Init") on them is gone, because the constructor sets them.
• PostgreSQLInstanceReadinessCheckTest, ClusterConnectionReconcilerErrorTest: @Inject fields replaced with private final fields. @InjectMock stays a field, because Quarkus supports it on fields only.
• PasswordFingerprintServiceTest: passes the Secret name to the constructor instead of setting the field.

IntelliJ warning "Private access modifier usage is not recommended for Quarkus CDI members"

IntelliJ shows this warning on the private final @ConfigProperty fields. It is a false positive:

• Lombok copies the annotation, so it stays on the field too. Quarkus reads the constructor parameter.
• AutoInjectFieldProcessor, which adds the implicit @Inject to a field with a qualifier, skips final fields. ArC also ignores @Inject on a final field. The code is the same in Quarkus 3.35.3, 3.40.1, and main.
• The CDI reference names constructor injection as one of the two ways to avoid reflection on private members.

Tests

checkstyleMain and checkstyleTest pass. The 48 tests of PasswordFingerprintServiceTest, PostgreSQLInstanceReadinessCheckTest, ClusterConnectionReconcilerTest, ClusterConnectionReconcilerErrorTest, and RoleReconcilerTest (which uses Given) pass. I did not run the full suite locally.