Add /var/lib persistent state directories for collector RPM/DEB packages

[dol]

Summary

Add packaged /var/lib/<package> directories to otelcol, otelcol-contrib, and otelcol-otlp RPM/DEB distributions.

Motivation

The file_storage resiliency extension persists the collector queue to disk. When installed via RPM or DEB packages, the collector service user needs a writable directory under /var/lib to store this state. Without the directory being created and owned by the package, users must manually create it or configure an alternate path.

Proposed Change

• Add /var/lib/<package> directory entry to the nfpm contents for each distribution
• Directory owned by the collector service user/group with mode 0750 (rwxr-x---)
• Affects: otelcol, otelcol-contrib, otelcol-otlp