ci: faster unit_tests (#33953)

* effect

* test

* no

* yes

* try some caching

* try

* 1

* try more 1

* just for fun

* 50 maybe????

* all for nothing

* fix

* add back

* back

* timeout

* clean

* try

* no

* less

.github/workflows/selfdrive_tests.yaml

@@ -174,10 +174,10 @@ jobs:
       timeout-minutes: ${{ ((steps.restore-scons-cache.outputs.cache-hit == 'true') && 10 || 30) }} # allow more time when we missed the scons cache
       run: ${{ env.RUN }} "scons -j$(nproc)"
     - name: Run unit tests
-      timeout-minutes: 15
+      timeout-minutes: 1
       run: |
         ${{ env.RUN }} "source selfdrive/test/setup_xvfb.sh && \
-                        $PYTEST --timeout 60 -m 'not slow' && \
+                        MAX_EXAMPLES=1 $PYTEST --timeout 60 -m 'not slow' && \
                         ./selfdrive/ui/tests/create_test_translations.sh && \
                         QT_QPA_PLATFORM=offscreen ./selfdrive/ui/tests/test_translations && \
                         pytest ./selfdrive/ui/tests/test_translations.py"