ci: Try to fix job which is killed due to low memory?

.github/workflows/on_push_ExtraJobsForMain.yml

@@ -39,17 +39,17 @@ jobs:
           cd build && \
           cmake -DCMAKE_BUILD_TYPE=Debug \
             -DBUILD_SHARED_LIBS=ON \
-            -DEXIV2_BUILD_SAMPLES=ON \
             -DEXIV2_ENABLE_PNG=ON \
             -DEXIV2_ENABLE_WEBREADY=ON \
             -DEXIV2_ENABLE_CURL=ON \
             -DEXIV2_BUILD_UNIT_TESTS=ON \
             -DEXIV2_ENABLE_BMFF=ON \
             -DEXIV2_TEAM_WARNINGS_AS_ERRORS=ON \
+            -DEXIV2_BUILD_SAMPLES=ON \
             -DBUILD_WITH_COVERAGE=ON \
             -DCMAKE_INSTALL_PREFIX=install \
             .. && \
-          cmake --build . --parallel
+          cmake --build .
 
       - name: Tests + Upload coverage
         run: |