jenkins: limit cpu and memory (#31329)

* limit that

* we can use 32g

* addopts

* half

Jenkinsfile

@@ -106,7 +106,7 @@ def pcStage(String stageName, Closure body) {
 
     checkout scm
 
-    def dockerArgs = "--user=batman -v /tmp/comma_download_cache:/tmp/comma_download_cache -v /tmp/scons_cache:/tmp/scons_cache -e PYTHONPATH=${env.WORKSPACE}";
+    def dockerArgs = "--user=batman -v /tmp/comma_download_cache:/tmp/comma_download_cache -v /tmp/scons_cache:/tmp/scons_cache -e PYTHONPATH=${env.WORKSPACE} --cpus=8 --memory 16g -e PYTEST_ADDOPTS='-n8'";
 
     def openpilot_base = retryWithDelay (3, 15) {
       return docker.build("openpilot-base:build-${env.GIT_COMMIT}", "-f Dockerfile.openpilot_base .")