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

@@ -59,15 +59,11 @@ jobs:
           - os: ubuntu-22.04
             sanitizer: Asan
             firebird-version: '5.0.3'
-            # 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
             sanitizer: Valgrind
             firebird-version: '5.0.3'
 
     runs-on: ${{ matrix.os }}
-    continue-on-error: ${{ matrix.continue-on-error || false }}
 
     steps:
       - uses: actions/checkout@v6