Remove continue-on-error from ASAN CI job

The heap-buffer-overflow in ConvertingString (sizeof(wchar_t) vs
sizeof(SQLWCHAR)) has been fixed.  ASAN now passes all 375 tests
cleanly on ubuntu-22.04/GCC, so the soft-fail guard is no longer
needed.

Author: fdcastel

.github/workflows/build-and-test.yml

@@ -24,9 +24,6 @@ jobs:
           - os: ubuntu-22.04
             config: Debug
             sanitizer: Asan
-            # ASAN found pre-existing memory bugs (e.g. heap-buffer-overflow in
-            # OdbcError::sqlGetDiagRec).  Allow failure until those are fixed.
-            continue-on-error: true
           - os: ubuntu-22.04
             config: Debug
             sanitizer: Valgrind