### Why I did it
HLD implementation: Container Hardening (https://github.com/sonic-net/SONiC/pull/1364)
##### Work item tracking
- Microsoft ADO **(number only)**: 14807420
#### How I did it
Reduce linux capabilities in privileged flag
#### How to verify it
Run eventd sonic-mgmt tests
Why I did it
When SUPERVISOR_PROC_EXIT_LISTENER_SCRIPT changed, almost all dockers need to be built again.
But currently it will be loaded by cache.
Work item tracking
Microsoft ADO (number only): 25123348
How I did it
Add $(DOCKER)_FILES into dependencies.
#### Why I did it
To fix the timezone sync issue between the containers and the host. If a certain timezone has been configured on the host (SONIC) then the expectation is to reflect the same across all the containers.
This will fix [Issue:13046](https://github.com/sonic-net/sonic-buildimage/issues/13046).
For instance, a PST timezone has been set on the host and if the user checks the link flap logs (inside the FRR), it shows the UTC timestamp. Ideally, it should be PST.
With this PR in, you flap BGP and use events_tool to see the published events.
With telemetry PR #111 in and corresponding submodule update done in buildimage, one could run gnmi_cli to capture BGP flap events.
