Fix trigger of CDI refresh service

Commit 1f5ce73 ("Fix trigger of CDI refresh service") did not allow
for compressed modules with suffixes such as .zst or .gz. This change
relaxes the matching to not require that the kernel module (including
extension) be followed by a colon. This allows compressed kernel modules
to also be matched.

Also fix systemd warning:

/etc/systemd/system/nvidia-cdi-refresh.service:26:
Ignoring unknown escape sequences: "/(nvidia|nvidia-current)\.ko[:]"

Signed-off-by: Ed Swarthout <Ed.Swarthout@gmail.com>
Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: EdSwarthout

deployments/systemd/nvidia-cdi-refresh.service

@@ -23,7 +23,7 @@ Type=oneshot
 # Values from Environment will be replaced if defined in EnvironmentFile
 Environment=NVIDIA_CTK_CDI_OUTPUT_FILE_PATH=/var/run/cdi/nvidia.yaml
 EnvironmentFile=-/etc/nvidia-container-toolkit/nvidia-cdi-refresh.env
-ExecCondition=/usr/bin/grep -qE '/(nvidia|nvidia-current)\.ko[:]' /lib/modules/%v/modules.dep
+ExecCondition=/usr/bin/grep -qE '/(nvidia|nvidia-current)\\.ko' /lib/modules/%v/modules.dep
 ExecStart=/usr/bin/nvidia-ctk cdi generate
 CapabilityBoundingSet=CAP_SYS_MODULE CAP_SYS_ADMIN CAP_MKNOD