[PLAT-15279] Adding unix timestamp to the core dump

Summary:
Based on slack discussions, it is helpful to have unix timestamps in the
file name for the core dump. This may help in debugging.

Test Plan:
itest-phabricator

Tested manually
with a custom executable,
core was generated with unix time stamp

```
core_yb.1727803373.a.out.44453.44456.gz
```

Reviewers: sanketh, hsunder

Reviewed By: sanketh, hsunder

Subscribers: hsunder, yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D38566

managed/devops/roles/provision-cluster-server/tasks/main.yml

@@ -106,7 +106,7 @@
   - name: Provision | Create core dump kernel pattern
     sysctl:
       name: kernel.core_pattern
-      value: "|{{ bin_path }}/compress_core.sh {{ yb_home_dir }}/cores/core_yb.%e.%p"
+      value: "|{{ bin_path }}/compress_core.sh {{ yb_home_dir }}/cores/core_yb.%t.%e.%p"
       state: present
     tags: yb-prebuilt-ami