project-lakitu: extensions-manager: Update cos-gpu-installer version to v2.0.4

The cos-gpu-installer:v2 has a bug that corrupts the shared library
configuration in ld.so.conf. After COS installer installs drivers,
it updates shared library configuration in ld.so.conf by adding
an entry '/var/lib/nvidia/lib64'. This entry needs an EOL at the end.
Otherwise subsequent executions of COS installer create a wrong config.
The cos-gpu-installer:v2.0.4 fixed the bug.

BUG=b/179497371
TEST=Tryjob
RELEASE_NOTE=Updated cos-gpu-installer to v2.0.4 in cos-extensions.

Change-Id: I35a8a30a968dc0cb294285d51621a5b606cf598f
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/12651
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Ke Wu <mikewu@google.com>
diff --git a/project-lakitu/app-admin/extensions-manager/extensions-manager-0.0.1-r2.ebuild b/project-lakitu/app-admin/extensions-manager/extensions-manager-0.0.1-r3.ebuild
similarity index 100%
rename from project-lakitu/app-admin/extensions-manager/extensions-manager-0.0.1-r2.ebuild
rename to project-lakitu/app-admin/extensions-manager/extensions-manager-0.0.1-r3.ebuild
diff --git a/project-lakitu/app-admin/extensions-manager/files/cos-extensions.sh b/project-lakitu/app-admin/extensions-manager/files/cos-extensions.sh
index d95365b..e3dbbc8 100755
--- a/project-lakitu/app-admin/extensions-manager/files/cos-extensions.sh
+++ b/project-lakitu/app-admin/extensions-manager/files/cos-extensions.sh
@@ -12,7 +12,7 @@
 
 readonly PROG_NAME=$(basename "$0")
 readonly COS_GPU_INSTALLER="${COS_GPU_INSTALLER:-\
-gcr.io/cos-cloud/cos-gpu-installer:v2.0.3}"
+gcr.io/cos-cloud/cos-gpu-installer:v2.0.4}"
 readonly OS_RELEASE="/etc/os-release"
 
 usage() {