ci : set GGML_NATIVE=OFF for sanitize builds (#3920)

This commit sets GGML_NATIVE=OFF for all sanitize builds to avoid
the case where the compilation happens using a runner that support
instructions that may not be available on all runners leading to illegal
instruction and failed CI runs.

Refs: https://github.com/ggml-org/whisper.cpp/actions/runs/28444909499/job/84291639530?pr=3919

Author: danbev

.github/workflows/build-sanitize.yml

@@ -58,21 +58,24 @@ jobs:
         run: |
           cmake . -DCMAKE_BUILD_TYPE=Debug \
             -DWHISPER_SANITIZE_${{ matrix.sanitizer }}=ON \
+            -DGGML_NATIVE=OFF \
             -DGGML_OPENMP=OFF
           make
 
       - name: Build
         if: ${{ matrix.sanitizer == 'ADDRESS' }}
         run: |
           cmake . -DCMAKE_BUILD_TYPE=RelWithDebInfo \
-            -DWHISPER_SANITIZE_${{ matrix.sanitizer }}=ON
+            -DWHISPER_SANITIZE_${{ matrix.sanitizer }}=ON \
+            -DGGML_NATIVE=OFF
           make
 
       - name: Build (no OpenMP)
         if: ${{ matrix.sanitizer == 'THREAD' }}
         run: |
           cmake . -DCMAKE_BUILD_TYPE=RelWithDebInfo \
             -DWHISPER_SANITIZE_${{ matrix.sanitizer }}=ON \
+            -DGGML_NATIVE=OFF \
             -DGGML_OPENMP=OFF
           make