Update test jobs to 800 and set runs_per_test back to 2 to detect flakes.

tools/internal_ci/linux/grpc_bazel_on_foundry_base.sh

@@ -37,7 +37,7 @@ source tools/internal_ci/helper_scripts/prepare_build_linux_rc
 # TODO(adelez): implement size for test targets and change test_timeout back
 "${KOKORO_GFILE_DIR}/bazel_wrapper.py" \
   --host_jvm_args=-Dbazel.DigestFunction=SHA256 \
-  test --jobs="200" \
+  test --jobs="800" \
   --test_output=errors  \
   --verbose_failures=true  \
   --keep_going  \

tools/internal_ci/linux/grpc_bazel_on_foundry_dbg.sh

@@ -13,6 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-EXTRA_FLAGS="-c dbg --test_timeout=300,450,1200,3600 --runs_per_test_detects_flakes --runs_per_test=1"
+EXTRA_FLAGS="-c dbg --test_timeout=300,450,1200,3600 --runs_per_test_detects_flakes --runs_per_test=2"
 github/grpc/tools/internal_ci/linux/grpc_bazel_on_foundry_base.sh "${EXTRA_FLAGS}"
 

tools/internal_ci/linux/grpc_bazel_on_foundry_opt.sh

@@ -13,5 +13,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-EXTRA_FLAGS="-c opt --test_timeout=300,450,1200,3600 --runs_per_test_detects_flakes --runs_per_test=1"
+EXTRA_FLAGS="-c opt --test_timeout=300,450,1200,3600 --runs_per_test_detects_flakes --runs_per_test=2"
 github/grpc/tools/internal_ci/linux/grpc_bazel_on_foundry_base.sh "${EXTRA_FLAGS}"