feat: memoize record method call so it is only called once

[jake-bassett]

Description

Small fix to memoize call to getLogEventAttributeRecords. This stops it from calling multiple times and triggering change detection in ht-list-view.

[codecov]

Codecov Report

Merging #858 (5294178) into main (1b54d53) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #858   +/-   ##
=======================================
  Coverage   85.47%   85.47%           
=======================================
  Files         797      797           
  Lines       16351    16351           
  Branches     1955     1955           
=======================================
  Hits        13976    13976           
  Misses       2343     2343           
  Partials       32       32           

Impacted Files	Coverage Δ
...omponents/log-events/log-events-table.component.ts	77.77% <ø> (ø)
...d/components/log-events/log-events-table.module.ts	100.00% <100.00%> (ø)

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[github-actions]

Unit Test Results

    4 files  ±0  252 suites  ±0   15m 21s ⏱️ +35s
908 tests ±0  908 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
914 runs  ±0  914 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 0495b2d. ± Comparison against base commit 1b54d53.