ci: add more ubsan suppressions

Author: apoelstra

test/sanitizer_suppressions/ubsan

@@ -76,8 +76,12 @@ shift-base:util/bip32.cpp
 implicit-integer-sign-change:blech32.cpp
 implicit-signed-integer-truncation:script/interpreter.cpp
 implicit-integer-sign-change:blech32.cpp
+# chain.h line 472 implicit integer sign change ~DYNAFED_HF_MASK
+implicit-integer-sign-change:chain.h
 implicit-integer-sign-change:primitives/block.h
 implicit-integer-sign-change:primitives/confidential.cpp
 implicit-integer-sign-change:primitives/confidential.h
 shift-base:simplicity/sha256.c
 unsigned-integer-overflow:simplicity/sha256.c
+implicit-integer-sign-change:simplicity/secp256k1/modinv64_impl.h
+shift-base:simplicity/secp256k1/field_5x52_impl.h