feat(log): add context fields to lifecycle events

[piksel]

This just adds some context (container name, when available, or id) to some of the log messages that are emitted during lifecycle events.
Basically going from:

DEBU[0064] Executing pre-update command.
DEBU[0064] Awaiting timeout or completion                exec-id= exit-code=127 running=false
ERRO[0064] Command exited with code 127
INFO[0064] Skipping container as the pre-update command failed
DEBU[0065] No post-check command supplied. Skipping
DEBU[0065] No post-check command supplied. Skipping
DEBU[0065] No post-check command supplied. Skipping
DEBU[0065] No post-check command supplied. Skipping

to

DEBU[0064] Executing pre-update command.                 container=/testcontainer2
DEBU[0064] Awaiting timeout or completion                exec-id= exit-code=127 running=false
ERRO[0064] Command exited with code 127
INFO[0064] Skipping container as the pre-update command failed
DEBU[0065] No post-check command supplied. Skipping      container=/testcontainer4
DEBU[0065] No post-check command supplied. Skipping      container=/testcontainer3
DEBU[0065] No post-check command supplied. Skipping      container=/testcontainer2
DEBU[0065] No post-check command supplied. Skipping      container=/testcontainer1

[codecov]

Codecov Report

Merging #1007 (34237cc) into main (ea300b7) will increase coverage by 2.30%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##             main    #1007      +/-   ##
==========================================
+ Coverage   59.63%   61.93%   +2.30%     
==========================================
  Files          22       22              
  Lines        1412     1416       +4     
==========================================
+ Hits          842      877      +35     
+ Misses        500      459      -41     
- Partials       70       80      +10     

Impacted Files	Coverage Δ
pkg/container/client.go	27.91% <85.71%> (+13.63%)	⬆️
pkg/registry/digest/digest.go	44.26% <0.00%> (+1.88%)	⬆️

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